Device for judging ectopic placement of PICC (Peripherally Inserted Central Catheter)

Abstract

The invention relates to the technical field of medical tools, in particular to a device for judging ectopic placement of a PICC (peripherally inserted central catheter), which comprises two first mounting belts, clamping joints are arranged at close ends of the two first mounting belts, the two clamping joints are movably clamped together, and assembly joints are fixedly connected to opposite ends of the two first mounting belts. According to the initial insertion position and the final position of a PICC catheter in the body of a patient, the position of a sliding type installation base on a third installation belt is adjusted, meanwhile, according to the installation trend of the PICC catheter, structural deformation formed by a soft protection sleeve and a deformable pipe is adjusted, and when the soft protection sleeve and the deformable pipe deform, an assembly bottom plate and an adhesive covering film are driven to deform; the adhesive covering film is in contact with the skin of a patient, the adhesive covering film is fixed through an adhesive substance on the adhesive covering film, after installation is completed, the position of the detection strip corresponds to the position of the PICC catheter, the detection strip detects the position of the PICC catheter, and after the PICC catheter deviates, the detection strip gives an alarm.

Description

Technical Field

[0001] The invention relates to the technical field of medical tools, in particular to a device for judging whether a PICC catheter is malpositioned. Background Art

[0002] PICC catheter (Peripherally Inserted Central Catheter) is a catheter inserted into the central vein through a peripheral vein. The insertion of PICC catheter is usually performed in the patient's upper arm elbow vein. The operation is relatively simple and less traumatic. Compared with the traditional central venous catheter insertion method, PICC catheter reduces the risk of infection.

[0003] Eccentric placement of PICC catheters may lead to a series of adverse consequences. First, it will affect the effect of drug infusion, because the ectopic catheter cannot accurately deliver drugs to the central vein, thereby reducing the treatment effect. Secondly, it increases the risk of complications. In order to promptly detect and deal with ectopic placement of PICC catheters, X-rays and other imaging examinations are usually performed after insertion to confirm the position of the catheter. The timeliness of this detection method is still somewhat insufficient, and it cannot detect the placement of PICC catheters in real time, so there is room for improvement. Summary of the invention

[0004] The purpose of the present invention is to provide a device for determining whether a PICC catheter is malpositioned, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a device for judging whether a PICC catheter is placed in an abnormal position, comprising two first mounting belts, the ends of the two first mounting belts close to each other are each provided with a clamping joint, and the two clamping joints are movably clamped together, the ends of the two first mounting belts facing away from each other are each fixedly connected with an assembly joint, a second mounting belt is provided between the assembly joints for connection, the tops of the two assembly joints are connected by two third mounting belts, a sliding mounting seat is slidably connected to the third mounting belt, a first mounting frame is fixedly installed on the top of the sliding mounting seat, and a first mounting frame is fixedly installed on the top of the first mounting frame There is a second mounting frame, the second mounting frame is rotatably connected with a positioning bolt, a lifting plate is movably installed in the first mounting frame, a first limiting frame is fixedly installed on the bottom of the lifting plate, a second limiting frame is fixedly installed on the bottom of the sliding mounting seat, a soft protective cover is movably installed in the sliding mounting seat, a deformable tube is fixedly installed in the soft protective cover, a deformable cable tie is arranged outside the soft protective cover, the third mounting belt passes through corresponding positions on the first limiting frame and the second limiting frame, a connecting plate is fixedly installed on the bottom of the soft protective cover, the bottom of the connecting plate is fixedly connected to an assembly base plate, and the bottom of the assembly base plate is fixedly connected to an adhesive coating.

[0006] Preferably, the lifting plate and the first limiting frame form an enclosing structure, the second limiting frame and the sliding mounting seat form an enclosing structure, and the third mounting belt located above is installed in the structure composed of the lifting plate and the first limiting frame, and the third mounting belt located below is installed in the structure composed of the second limiting frame and the sliding mounting seat.

[0007] Preferably, the outer wall of the deformable tube fits the inner wall of the soft protective sleeve, and the lengths of the deformable tube and the soft protective sleeve are the same.

[0008] Preferably, the bottom end of the adjusting bolt is located inside the lifting plate, and the bottom end of the adjusting bolt is rotatably connected to the lifting plate.

[0009] Preferably, the inner diameter of the deformable cable tie is larger than the outer diameter of the soft protective sleeve, and the deformable cable tie and the soft protective sleeve are clearance-fitted.

[0010] Preferably, the assembly base plate and the adhesive coating structure is connected to another assembly base plate and the adhesive coating structure via a bent portion, and the two assembly base plate and the adhesive coating structure have the same length.

[0011] Preferably, the assembly base plate is provided with first preset clearance grooves at equal intervals, the adhesive film is provided with second preset clearance grooves at equal intervals, and the positions of the first preset clearance groove and the second preset clearance groove correspond to each other, and the widths of the first preset clearance groove and the second preset clearance groove are the same.

[0012] Preferably, a detection strip is movably mounted on the assembly base plate, a protection strip is fixedly mounted at a position on the assembly base plate corresponding to the detection strip, and the width of the protection strip is greater than the width of the detection strip.

[0013] Preferably, two installation belt slots are provided on the assembly joint, and the ends of the second installation belt pass through the two installation belt slots in sequence. Anti-slip convex strips are fixedly installed on the assembly joint at positions corresponding to the bending positions of the second installation belt.

[0014] Preferably, sliding sleeves are movably mounted on the two first mounting belts, anti-friction plates are arranged between the sliding sleeves for connection, and anti-slip support members are fixedly mounted on both sides of the anti-friction plates.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. According to the initial insertion position and terminal position of the PICC catheter in the patient's body, adjust the position of the sliding mounting seat on the third mounting belt. At the same time, according to the installation direction of the PICC catheter, adjust the structural deformation of the soft protective sleeve and the deformable tube, and set it along the installation direction of the PICC catheter. When the soft protective sleeve and the deformable tube are deformed, they also drive the assembly base and the adhesive film to deform. The adhesive film contacts the patient's skin and is fixed by the sticky material on the adhesive film. After the installation is completed, the positions of the detection strip and the PICC catheter correspond to each other. The detection strip detects the position of the PICC catheter. After the PICC catheter is offset, the detection strip generates an alarm. First, early warning can be achieved. The detection strip can reflect the position change of the catheter in real time or regularly. Once there is a slight sign of offset, it can be detected in time, so that corresponding measures can be taken to avoid further offset of the catheter and cause serious consequences. For example, adjust the patient's position or perform necessary fixing operations in the early stage of offset. Secondly, improve the accuracy and reliability of the detection. The detection strip has the same direction as the catheter, which can more accurately track the movement path and amplitude of the catheter and reduce the possibility of misjudgment. For example, if you rely solely on traditional imaging examinations, you may miss some subtle deviations due to long intervals between examinations or imaging accuracy issues. Moreover, it is convenient for medical staff to conduct daily observation and evaluation. The detection strip is set directly on the skin, and medical staff can intuitively see the status of the catheter without complicated operations in daily care, saving time and energy. For example, during ward rounds, medical staff can tell at a glance whether the catheter is deviated.

[0016] 2. According to the patient's waist wearing position and chest wearing position, the distance between the assembly joints is adjusted, and the fixing effect of the second mounting belt on the assembly joint is improved by the anti-slip convex strip on the assembly joint. According to the size of the patient's wearing position, the length of the first mounting belt in the clamping joint is adjusted. The first mounting belt, the assembly joint and the third mounting belt form a structure that is wrapped around the patient, which enhances the versatility and applicability of the product. Manufacturers do not need to produce wearable products of various sizes and specifications, reducing inventory pressure and production costs. Hospitals or rehabilitation institutions can also allocate resources more flexibly to provide unified and applicable wearable devices for patients of different body shapes.

[0017] 3. When the length of the first mounting belt is adjusted on the card joint, the sliding sleeve is always on the first mounting belt, and the presence of the anti-slip support ensures that the anti-friction plate and the anti-slip support will not slide easily. At the same time, the sliding sleeve plays a limiting role to ensure that the sliding sleeve, the anti-friction plate and the anti-slip support structure will not detach. The anti-friction plate and the anti-slip support structure are located on the back of the patient to prevent direct contact between the card joint and the back of the patient, thereby improving wearing comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view structural schematic diagram of the present invention.

[0019] Figure 2 It is a side view structural schematic diagram of the present invention.

[0020] Figure 3 It is a schematic diagram of the top view structure of the present invention.

[0021] Figure 4 It is a schematic diagram of the structure at the corresponding position of the anti-friction plate of the present invention.

[0022] Figure 5 It is a structural schematic diagram of the corresponding position of the sliding sleeve of the present invention.

[0023] Figure 6 It is a structural schematic diagram of the corresponding position of the sliding mounting seat of the present invention.

[0024] Figure 7 It is a schematic diagram of the structure of the corresponding position of the deformable tube of the present invention.

[0025] Figure 8 It is a structural schematic diagram of the corresponding position of the soft protective cover of the present invention.

[0026] Fig. 9 It is a schematic diagram of the structure of the corresponding position of the deformable cable tie of the present invention.

[0027] Fig.10 It is a schematic diagram of the structure at the corresponding position of the adjusting bolt of the present invention.

[0028] Fig.11 It is a structural schematic diagram of the corresponding position of the assembly base plate of the present invention.

[0029] Fig.12 It is a schematic diagram of the structure at the corresponding position of the bending part of the present invention.

[0030] Fig.13 It is a schematic diagram of the structure at the corresponding position of the detection strip of the present invention.

[0031] In the figure: 1. first mounting belt; 2. clamping joint; 3. assembly joint; 301. mounting belt slot; 302. anti-skid convex strip; 4. second mounting belt; 5. third mounting belt; 6. sliding mounting seat; 7. first mounting frame; 8. second mounting frame; 9. adjusting bolt; 10. lifting plate; 11. first limiting frame; 12. second limiting frame; 13. soft protective cover; 14. deformable tube; 15. deformable cable tie; 16. connecting plate; 17. assembly base plate; 1701. first preset clearance groove; 18. adhesive coating; 1801. second preset clearance groove; 19. bending part; 20. detection strip; 21. protection strip; 22. sliding cover; 23. anti-friction plate; 24. anti-skid support. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] See also Figures 1 to 13The present invention provides a technical solution: a device for judging whether a PICC catheter is ectopically inserted, comprising two first installation belts 1, wherein the first installation belt 1 is a nylon belt, which has many advantages. First, it has high strength and good wear resistance, can withstand large tensile force and frequent friction, and is not easy to be damaged. Secondly, the nylon belt has good corrosion resistance and can maintain stable performance under different environmental conditions. Furthermore, the nylon belt has good flexibility, is easy to bend and fold, and is convenient for storage and carrying. A clamping joint 2 is provided at one end of the two first installation belts 1 that are close to each other, and the two clamping joints 2 are movably clamped together. The clamping joint 2 is made of plastic and is worn on the body. The plastic buckle used to adjust the length of the first installation belt 1 can be quickly assembled through the cleverly designed buckle. The assembly and disassembly is convenient for use and for users to install by themselves. The ends of the two first mounting belts 1 that are separated from each other are fixedly connected with mounting joints 3. The mounting joints 3 are also plastic buckles, which are used to adjust the distance between the two mounting joints 3. The length of the second mounting belt 4 between the two mounting joints 3 is changed by adjusting the distance between the mounting joints 3. The second mounting belt 4 is provided between the mounting joints 3 for connection. The second mounting belt 4 is also a nylon belt to ensure strength, thereby improving the durability of the entire equipment. The tops of the two mounting joints 3 are connected by two third mounting belts 5. The third mounting belts 5 are also nylon belts. The distance between the third mounting belts 5 is small, which does not affect the sliding of the sliding mounting seat 6 between the two third mounting belts 5. The third mounting belt 5 is located at The first mounting belt 1 is located on the front side of the body, and the first mounting belt 1, the clamping joint 2, the assembly joint 3 and the third mounting belt 5 form an annular structure. The length of the structure can be changed by the length of the first mounting belt 1 on the clamping joint 2, so as to adapt to people with different chest and waist circumferences and improve adaptability. The third mounting belt 5 is slidably connected with a sliding mounting seat 6, and the sliding mounting seat 6 is a plastic part, and the sliding mounting seat 6 is composed of two circular rings and a circular tube. The two circular rings are used for limiting. The two circular rings are located on both sides of the third mounting belt 5 to play a limiting role. The circular tube is located between the two third mounting belts 5, and the length of the circular tube part is slightly larger than the width of the third mounting belt 5, which ensures the sliding of the third mounting belt 5 on the sliding mounting seat 6 and also ensures the third The mounting belt 5 and the sliding mounting seat 6 form a sliding connection of the structure. A first mounting frame 7 is fixedly installed on the top of the sliding mounting seat 6. The first mounting frame 7 is a U-shaped structure. A groove is opened in the middle of the first mounting frame 7. A lifting plate 10 is movably installed in the first mounting frame 7. The lifting plate 10 is lifted and lowered in the first mounting frame 7. The first limiting frame 11 is fixedly connected to the lifting plate 10 to drive the lifting and lowering of the first limiting frame 11. The lifting plate 10 and the first limiting frame 11 form a movable connection structure with the first mounting frame 7. A second mounting frame 8 is fixedly installed on the top of the first mounting frame 7. The first mounting frame 7 and the second mounting frame 8 are both U-shaped structures, and the size of the first mounting frame 7 is smaller than that of the second mounting frame 8 to ensure the installation of the second mounting frame 8 on the first mounting frame 7.The second mounting frame 8 is rotatably connected with an adjusting bolt 9, and the rotation of the adjusting bolt 9 drives the lifting plate 10 rotatably connected with the adjusting bolt 9 to rise and fall in the first mounting frame 7, thereby driving the lifting plate 10 and the first limiting frame 11 to form a structure to rise and fall in the first mounting frame 7, thereby driving the third mounting belt 5 in the structure composed of the first limiting frame 11 and the lifting plate 10 to apply pressure, so that the third mounting belt 5 is engaged in the first mounting frame 7, so as to realize the fixation of the sliding mounting seat 6, and the lifting plate 10 is movably installed in the first mounting frame 7, and the first limiting frame 11 is fixedly installed at the bottom of the lifting plate 10, and the lifting plate 10 and the first limiting frame 11 are an integrated structure, and the lifting plate 10 and the first limiting frame 11 The structure is slidably connected to the first mounting frame 7, and the sliding type mounting seat 6 is fixedly installed in the first mounting frame 7. A second limiting frame 12 is fixedly installed at the bottom of the mounting seat 6. The position of the second limiting frame 12 corresponds to the position of the lifting plate 10 and the first limiting frame 11, and is respectively used for guiding the third mounting belt 5 above and below the sliding mounting seat 6. A soft protective cover 13 is movably installed in the sliding mounting seat 6. The soft protective cover 13 is a rubber hose with the ability to deform. Rubber hoses of different materials are suitable for different working conditions and medium transportation requirements due to their differences in properties. A deformable tube 14 is fixedly installed in the soft protective cover 13. The deformable tube 14 can be deformed. At the same time, after the deformable tube 14 is deformed, the deformable tube 14 can retain the deformed state. It is generally a bamboo tube or soft metal. The metal bamboo tube has higher strength and durability. The metal bamboo tube can provide a stable support and can be bent into any shape as needed. A deformable tie 15 is arranged outside the soft protective cover 13. The deformable tie 15 can be pressed as needed. The deformable tie 15 is deformed after being pressed. The deformable tie 15 is fixed outside the soft protective cover 13 after deformation, thereby changing the retention length of the soft protective cover 13 between the two sliding mounting seats 6. The third mounting belt 5 passes through the corresponding positions on the first limiting frame 11 and the second limiting frame 12 to ensure that the sliding mounting seat 6 is connected to the two third mounting belts 5. The bottom of the mobile soft protective cover 13 on the structure is fixedly installed with a connecting plate 16. The width of the connecting plate 16 is the same as the diameter of the soft protective cover 13, ensuring the placement effect of the structure composed of the connecting plate 16 and the soft protective cover 13. The bottom of the connecting plate 16 is fixedly connected with an assembly base plate 17. The assembly base plate 17 is a pad used to assist the installation of the adhesive film 18. The adhesive film 18 is installed at the bottom of the assembly base plate 17. The adhesive film 18 sticks to the skin and assists the installation of the structure composed of the assembly base plate 17 and the adhesive film 18. The bottom of the assembly base plate 17 is fixedly connected with the adhesive film 18.

[0034] The lifting plate 10 and the first limiting frame 11 form a surrounding structure, the second limiting frame 12 and the sliding mounting seat 6 form a surrounding structure, and the third mounting belt 5 located above is installed in the structure composed of the lifting plate 10 and the first limiting frame 11, the first limiting frame 11 and the lifting plate 10 form a frame, which is sleeved on the third mounting belt 5 above, and assists the third mounting belt 5 to cooperate with the lifting plate 10 and the first limiting frame 11, the third mounting belt 5 located below is installed in the structure composed of the second limiting frame 12 and the sliding mounting seat 6, the sliding mounting seat 6 and the second limiting frame 12 form a frame sleeved outside the third mounting belt 5 below, and assists the sliding mounting seat 6 to move between the two third mounting belts 5.

[0035] The outer wall of the deformable tube 14 fits with the inner wall of the soft protective sleeve 13, and the lengths of the deformable tube 14 and the soft protective sleeve 13 are the same, ensuring the connection effect between the deformable tube 14 and the soft protective sleeve 13. At the same time, the lengths of the structures composed of the deformable tube 14 and the soft protective sleeve 13 are the same, which can ensure that after the sliding mounting seat 6 moves outside the soft protective sleeve 13 and the deformable tube 14, the structure composed of the soft protective sleeve 13 and the deformable tube 14 can play its effect.

[0036] The bottom end of the adjusting bolt 9 is located in the lifting plate 10, and the bottom end of the adjusting bolt 9 is rotatably connected to the lifting plate 10. The adjusting bolt 9 consists of a screwing part and a threaded part. The rotation of the adjusting bolt 9 drives the first limiting frame 11 and the lifting plate 10 to rise and fall in the first mounting frame 7.

[0037] The inner diameter of the deformable cable tie 15 is larger than the outer diameter of the soft protective cover 13, and the deformable cable tie 15 and the soft protective cover 13 are clearance-fitted, ensuring the movement of the deformable cable tie 15 outside the soft protective cover 13, and fixing the deformable cable tie 15 on the soft protective cover 13 through the deformation of the deformable cable tie 15.

[0038] The structure consisting of an assembly base plate 17 and an adhesive covering film 18 is connected to a structure consisting of another assembly base plate 17 and an adhesive covering film 18 through a bending portion 19, and the two assembly base plates 17 and adhesive covering films 18 have the same length. The redundant assembly base plates 17 and adhesive covering films 18 can be rolled up or wrapped around the third mounting belt 5. When the length of the assembly base plate 17 and the adhesive covering film 18 needs to be adjusted according to the length of the patient's PICC catheter, it has stronger adaptability and can adapt to patients of different body shapes.

[0039] The assembly base plate 17 is provided with first preset give-way grooves 1701 at equal intervals, and the adhesive coating 18 is provided with second preset give-way grooves 1801 at equal intervals, and the positions of the first preset give-way grooves 1701 and the second preset give-way grooves 1801 correspond to each other, and the widths of the first preset give-way grooves 1701 and the second preset give-way grooves 1801 are the same. According to the direction of the PICC catheter in the human body, the direction of the structure composed of the assembly base plate 17 and the adhesive coating 18 is adjusted. When the directions of the assembly base plate 17 and the adhesive coating 18 are adjusted, the first preset give-way grooves 1701 set on the assembly base plate 17 and the second preset give-way grooves 1801 set on the adhesive coating 18 can assist in the bending of the assembly base plate 17 and the adhesive coating 18 during installation.

[0040] A detection strip 20 is movably mounted on the assembly base plate 17, and a protection strip 21 is fixedly mounted at a position corresponding to the detection strip 20 on the assembly base plate 17, and the width of the protection strip 21 is greater than the width of the detection strip 20. The protection strip 21 protects the detection strip 20 to prevent the detection strip 20 from being affected by external objects, resulting in damage to the detection strip 20. At the same time, the positions of the detection strip 20 and the PICC catheter correspond to each other, and the position of the PICC catheter is detected by the detection strip 20. When the position of the PICC catheter is offset, the detection strip 20 detects and issues an alarm. According to the detection needs, the detection strip 20 detects special substances on the PICC catheter or detects the flow direction of the liquid in the PICC catheter, etc., to ensure the position of the PICC catheter.

[0041] Two mounting strap slots 301 are provided on the assembly joint 3, and the ends of the second mounting strap 4 pass through the two mounting strap slots 301 in sequence. Anti-skid ridges 302 are fixedly installed at the positions of the assembly joint 3 corresponding to the bending positions of the second mounting strap 4. The second mounting strap 4 passes through the mounting strap slots 301 in sequence to fix the second mounting strap 4 on the assembly joint 3. The bent portion of the second mounting strap 4 contacts the anti-skid ridges 302, and the anti-skid ridges 302 apply pressure to the bent portion of the second mounting strap 4, thereby improving the stability of the installation of the second mounting strap 4 on the assembly joint 3.

[0042] Both first mounting belts 1 are movably provided with sliding sleeves 22, and anti-friction plates 23 are provided between the sliding sleeves 22 for connection. Anti-slip support members 24 are fixedly installed on both sides of the anti-friction plates 23. The anti-friction plates 23 and the anti-slip support members 24 form a structure that contacts the back of the patient, preventing the card connector 2 from directly contacting the back of the patient, thereby protecting the patient's back.

[0043] Working principle: The first step: according to the patient's waist wearing position and chest wearing position, adjust the distance between the assembly joints 3, and move the second mounting belt 4 in the mounting belt slot 301 on the assembly joint 3 to adjust the length of the second mounting belt 4 between the assembly joints 3. The second mounting belt 4 passes through the two mounting belt slots 301 on the assembly joint 3 in sequence. At the same time, the anti-slip convex strip 302 on the assembly joint 3 improves the fixing effect of the second mounting belt 4 on the assembly joint 3. According to the size of the patient's wearing position, adjust the length of the first mounting belt 1 in the clamping joint 2. The first mounting belt 1, the assembly joint 3 and the third mounting belt 5 form a structure that is wrapped around the patient. By docking the clamping joints 2 on the two ends of the first mounting belts 1, the first mounting belt 1, the assembly joint 3 and the third mounting belt 5 are worn on the patient. After wearing, the first mounting belt 1 is located on the back of the body, and the third mounting belt 5 is located on the front of the body.

[0044] Step 2: When the length of the first mounting belt 1 is adjusted on the clamping joint 2, the sliding sleeve 22 is always on the first mounting belt 1, and the presence of the anti-slip support member 24 enables the anti-slip support member 24 to apply pressure to the first mounting belt 1 when the sliding sleeve 22 slides, ensuring that the anti-friction plate 23 and the anti-slip support member 24 will not slide easily. At the same time, the sliding sleeve 22 plays a limiting role, ensuring that the structure composed of the sliding sleeve 22, the anti-friction plate 23 and the anti-slip support member 24 will not separate. The structure composed of the anti-friction plate 23 and the anti-slip support member 24 is located on the back of the patient, which is used to prevent the clamping joint 2 from directly contacting the back of the patient, thereby improving the wearing comfort.

[0045] Step 3: According to the initial insertion position and terminal position of the PICC catheter in the patient's body, the position of the sliding mounting seat 6 on the third mounting belt 5 is adjusted, the lifting plate 10 and the first limiting frame 11 on the sliding mounting seat 6 slide on the third mounting belt 5, and the second limiting frame 12 also slides on the third mounting belt 5 to realize the guidance of the sliding mounting seat 6 during the sliding process. After the two sliding mounting seats 6 are moved to the specified position, the adjusting bolt 9 on the second mounting frame 8 is screwed to make the bottom end of the adjusting bolt 9 rotate in the lifting plate 10, and the threaded movement of the adjusting bolt 9 on the second mounting frame 8 drives the lifting plate 10 and the first limiting frame 11 to rise and fall in the first mounting frame 7, so that the first limiting frame 11 drives the third mounting belt 5 to rise and fall, so that the first mounting frame 7 applies pressure to the third mounting belt 5 to realize the fixation of the sliding mounting seat 6 after the adjustment is completed. At the same time, according to the installation direction of the PICC catheter, the structure composed of the soft protective sleeve 13 and the deformable tube 14 is adjusted to deform the structure composed of the soft protective sleeve 13 and the deformable tube 14 and move along the PICC catheter. The installation direction of the CC catheter is set. According to the length of the PICC catheter, the length of the structure composed of the soft protective sleeve 13, the assembly base plate 17 and the adhesive film 18 is adjusted. The assembly base plate 17 and the adhesive film 18 are unfolded. After the length of the soft protective sleeve 13 between the two sliding mounting seats 6 is fixed, the deformable strap 15 on the soft protective sleeve 13 is pressed to achieve the adjusted fixation of the soft protective sleeve 13. When the soft protective sleeve 13 and the deformable tube 14 are deformed, the assembly base plate 17 and the adhesive film 18 are also deformed. When the base plate 17 and the adhesive film 18 are deformed, they are deformed along the first preset make way groove 1701 and the second preset make way groove 1801, thereby improving the convenience of assembling the base plate 17 and the adhesive film 18. The adhesive film 18 is in contact with the patient's skin, and the adhesive film 18 is fixed by the sticky substance on the adhesive film 18. After the installation is completed, the positions of the detection strip 20 and the PICC catheter correspond to each other, and the detection strip 20 detects the position of the PICC catheter. When the PICC catheter is offset, the detection strip 20 generates an alarm.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for determining PICC catheter malposition, characterized in that: The invention comprises two first mounting belts (1), each of the two first mounting belts (1) having a clamping joint (2) at one end thereof close to each other, and the two clamping joints (2) are movably clamped together, each of the two first mounting belts (1) having an assembly joint (3) fixedly connected at one end thereof away from each other, a second mounting belt (4) being arranged between the assembly joints (3) for connection, the tops of the two assembly joints (3) being connected via two third mounting belts (5), a sliding mounting seat (6) being slidably connected to the third mounting belts (5), a first mounting frame (7) being fixedly mounted on the top of the sliding mounting seat (6), a second mounting frame (8) being fixedly mounted on the top of the first mounting frame (7), a positioning bolt (9) being rotatably connected to the second mounting frame (8), and the first mounting frame (7) is movably mounted with a lifting plate (10), a first limiting frame (11) is fixedly mounted at the bottom of the lifting plate (10), a second limiting frame (12) is fixedly mounted at the bottom of the sliding mounting seat (6), a soft protective sleeve (13) is movably mounted in the sliding mounting seat (6), a deformable tube (14) is fixedly mounted in the soft protective sleeve (13), a deformable cable tie (15) is arranged outside the soft protective sleeve (13), the third mounting belt (5) passes through corresponding positions on the first limiting frame (11) and the second limiting frame (12), a connecting plate (16) is fixedly mounted at the bottom of the soft protective sleeve (13), an assembly bottom plate (17) is fixedly connected to the bottom of the assembly bottom plate (17), and an adhesive coating (18) is fixedly connected to the bottom of the assembly bottom plate (17).

2. The device for determining PICC catheter malposition according to claim 1, characterized in that: The lifting plate (10) and the first limiting frame (11) form an enclosing structure, the second limiting frame (12) and the sliding mounting seat (6) form an enclosing structure, and the third mounting belt (5) located above is installed in the structure formed by the lifting plate (10) and the first limiting frame (11), and the third mounting belt (5) located below is installed in the structure formed by the second limiting frame (12) and the sliding mounting seat (6).

3. The device for determining PICC catheter malposition according to claim 2, characterized in that: The outer wall of the deformable tube (14) fits the inner wall of the soft protective sleeve (13), and the deformable tube (14) and the soft protective sleeve (13) have the same length.

4. The device for determining PICC catheter malposition according to claim 3, characterized in that: The bottom end of the adjusting bolt (9) is located in the lifting plate (10), and the bottom end of the adjusting bolt (9) is rotatably connected to the lifting plate (10).

5. The device for determining PICC catheter malposition according to claim 4, characterized in that: The inner diameter of the deformable cable tie (15) is greater than the outer diameter of the soft protective sleeve (13), and the deformable cable tie (15) and the soft protective sleeve (13) are clearance-fitted.

6. The device for determining PICC catheter malposition according to claim 5, characterized in that: The structure composed of the assembly base plate (17) and the adhesive coating (18) is connected to another structure composed of the assembly base plate (17) and the adhesive coating (18) via a bent portion (19), and the two structures composed of the assembly base plate (17) and the adhesive coating (18) have the same length.

7. The device for determining PICC catheter malposition according to claim 6, characterized in that: The assembly base plate (17) is provided with first preset clearance grooves (1701) at equal intervals, and the adhesive film (18) is provided with second preset clearance grooves (1801) at equal intervals, and the positions of the first preset clearance grooves (1701) and the second preset clearance grooves (1801) correspond to each other, and the widths of the first preset clearance grooves (1701) and the second preset clearance grooves (1801) are the same.

8. The device for determining PICC catheter malposition according to claim 7, characterized in that: A detection strip (20) is movably mounted on the assembly base plate (17), and a protection strip (21) is fixedly mounted on the assembly base plate (17) at a position corresponding to the detection strip (20), and the width of the protection strip (21) is greater than the width of the detection strip (20).

9. The device for determining PICC catheter malposition according to claim 8, characterized in that: The assembly joint (3) is provided with two installation belt slots (301), and the ends of the second installation belt (4) pass through the two installation belt slots (301) in sequence. An anti-slip convex strip (302) is fixedly installed at a position on the assembly joint (3) corresponding to the bending position of the second installation belt (4).

10. The device for determining PICC catheter malposition according to claim 9, characterized in that: The two first mounting belts (1) are both movably provided with sliding sleeves (22), anti-friction plates (23) are provided between the sliding sleeves (22) for connection, and anti-slip support members (24) are fixedly installed on both sides of the anti-friction plates (23).

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