Fixing assembly for preventing catheter from slipping off in department of cardiology

Abstract

The invention belongs to the technical field of medical tools, and particularly relates to a cardiology department catheter anti-slip fixing assembly which comprises an arc-shaped soft plate and a protective cover arranged on the lower side wall of the arc-shaped soft plate, the protective cover is of a hemispherical hollow structure, and the protective cover communicates with the arc-shaped soft plate. The lower side wall of the protective cover is provided with a through hole matched with the PICC, and the side wall of the protective cover is connected with an insertion cylinder matched with the end of the PICC. When a patient uses the anti-slip fixing assembly to fix a PICC catheter, operation can be conducted with one hand, the use convenience of the patient is improved, meanwhile, according to the arm circumference of the patient, it can be guaranteed that the anti-slip fixing assembly is firmly fixed to the arm of the patient, meanwhile, it is avoided that the anti-slip fixing assembly is too tight, and the PICC catheter is not damaged. And the blood circulation of the arms of the patient is not smooth.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical tools, and in particular relates to a fixed component for preventing catheter slippage in cardiology department. Background Art

[0002] In the cardiology ward, some patients need long-term intravenous infusion of antiarrhythmic drugs, vasoactive drugs, etc. These drugs may have certain irritation to blood vessels. Moreover, for some patients with heart failure who need long-term intravenous drug treatment and monitoring, PICC catheterization can provide a stable intravenous access, facilitating drug input and central venous pressure monitoring. Patients with PICC catheters should receive standardized PICC catheter care during catheter indwelling to ensure catheter safety, prevent complications, and extend catheter use time. For example, a PICC catheter anti-slip and fixation device proposed in the patent publication number CN116672576A.

[0003] When fixing the existing PICC catheter, an elastic band is usually used for fixation. When the operator ties the elastic band around the patient's arm, the elastic band may be too tight, exerting a large pressure on the limb, which will compress blood vessels, especially the superficial blood vessels near the puncture site and the surrounding venous return system. Prolonged compression will lead to poor blood circulation, manifested as swelling, skin color change (such as purple, pale), temperature decrease, etc. in the distal part of the limb (such as fingers, back of the hand, etc.), and the elastic band may be too loose to achieve a good fixation effect on the PICC catheter;

[0004] The indwelling time of PICC catheters in patients varies greatly, ranging from several days to several months. During this period, when the patient wipes the body daily, the fixing device needs to be removed and reinstalled. Given that PICC catheters are mostly indwelling in the patient's right arm, without the assistance of family members, the patient can only rely on the left hand to operate to refix the catheter. However, it is extremely inconvenient to wear the fixing device with one hand, bringing many troubles to the patient.

[0005] Therefore, a fixed component for preventing catheter slippage in cardiology department is proposed to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a fixed component for preventing catheter slippage in cardiology department aiming at the above problems.

[0007] To achieve the above object, the present invention adopts the following technical solutions: A fixed component for preventing catheter slippage in cardiology department, including an arc-shaped soft board and a protective cover arranged on the lower side wall of the arc-shaped soft board. The protective cover is a hemispherical hollow structure, and the protective cover is communicated with the arc-shaped soft board. A perforation matching the PICC catheter is arranged on the lower side wall of the protective cover. An insertion cylinder matching the end of the PICC catheter is connected to the side wall of the protective cover. The left end of the arc-shaped soft board is fixedly connected with a tensile sensor, and the sensing end of the tensile sensor is fixedly connected with a strap. A fixing frame is fixedly connected to the lower side wall of the arc-shaped soft board. A winding roller is rotatably connected to the inner wall of the fixing frame. One end of the strap away from the tensile sensor is fixedly connected to the rod wall of the winding roller. A PLC controller and a micro power supply are fixedly connected to the inner wall of the fixing frame. It further includes:

[0008] A positioning component, arranged at the lower end of the winding roller, for fixing the position of the winding roller;

[0009] An anti-pulling component, arranged on the lower side wall of the protective cover, for fixing the PICC catheter;

[0010] A protection component, arranged inside the protective cover, to prevent external bacteria from entering the puncture point of the PICC catheter;

[0011] A detection component, arranged on the inner wall of the fixing frame, for detecting the swelling degree of the patient's arm;

[0012] A relief component, arranged on the inner wall of the fixing frame, for relieving the pain of the patient's arm.

[0013] Preferably, the positioning component includes a rotating cylinder slidably sleeved on the lower end of the winding roller. The lower end of the winding roller extends out of the fixing frame. The same spring is fixedly connected between the rotating cylinder and the winding roller. A sliding rod is fixedly connected to the inner wall of the rotating cylinder. A sliding opening matching the sliding rod is arranged on the rod wall of the winding roller. A positioning ring is fixedly sleeved on the outer wall of the rotating cylinder. Two positioning pins are fixedly connected to the upper side wall of the positioning ring. A positioning disk is fixedly connected to the lower side wall of the fixing frame. A plurality of positioning grooves matching the positioning pins are arranged on the lower side wall of the positioning disk.

[0014] Preferably, the anti-pulling component includes two horizontal cylinders fixedly connected to the lower side wall of the protective cover. The horizontal cylinders are fixedly connected to the protective cover through brackets. A piston plate is slidably arranged in each of the two horizontal cylinders. The same spring is fixedly connected between the piston plate and the protective cover. A limiting block is fixedly connected to the side wall of the piston plate away from the spring. A limiting sleeve is fixedly sleeved on the outer wall of the PICC catheter. Limiting grooves matching the limiting blocks are formed on both the left and right sides of the limiting sleeve. The same annular pipe is fixedly connected to the outer walls of the two horizontal cylinders. The same short pipe is fixedly communicated between the annular pipe and the horizontal cylinders. A micro air pump is fixedly connected to the outer wall of the protective cover. An air supply pipe is fixedly communicated between the air outlet end of the micro air pump and the annular pipe. A first control valve is arranged in the air supply pipe. A pressure sensor is arranged at the air outlet end of the micro air pump. The pressure sensor is electrically connected to the PLC controller. An exhaust pipe is arranged at the air outlet end of the micro air pump, and an exhaust valve is arranged in the exhaust pipe.

[0015] Preferably, the protective component includes a connecting pipe fixedly communicated with the air outlet end of the micro air pump. A second control valve is arranged in the connecting pipe. An annular groove is formed on the inner wall of the through hole. The upper end of the connecting pipe is communicated with the annular groove. A rubber pad arranged on the outer wall of the annular groove is fixedly connected to the inner wall of the through hole.

[0016] Preferably, the detection component includes a detection cylinder fixedly inserted on the side wall of the fixed frame. A moving plate is fixedly connected to the right inner wall of the detection cylinder through a spring. A detection rod is fixedly connected to the left side wall of the moving plate. A ball is fixedly connected to the left end of the detection rod. The left end of the ball extends out of the detection cylinder and contacts the binding band. A conductive frame is fixedly connected to the right side wall of the moving plate. The conductive frame is electrically connected to the micro power supply. A resistance plate is embedded in the rear inner wall of the detection cylinder. A working box is fixedly connected to the lower side wall of the fixed frame. An electromagnet is fixedly connected to the right inner wall of the working box. The left end of the resistance plate is electrically connected to the electromagnet. A partition plate is fixedly connected to the left side wall of the working box. Two magnetic plates are respectively fixedly connected to the left inner wall of the working box through two springs. A trigger plate is fixedly connected to the upper side wall of the lower magnetic plate. A trigger seat is fixedly connected to the lower side wall of the lower trigger plate. The trigger plate is electrically connected to the micro power supply. The trigger seat is electrically connected to the PLC controller. Openings matching the trigger plate and the trigger seat are formed on the side wall of the partition plate. A small electric push rod is fixedly connected to the right side wall of the upper magnetic plate. A friction block is fixedly connected to the moving end of the small electric push rod. A friction plate is embedded in the upper inner wall of the working box.

[0017] Preferably, the relief component includes a water tank fixedly connected to the inner wall of the fixing frame. A plurality of micro-semiconductor refrigeration plates are inserted into the right side wall of the water tank. The refrigerating ends of the micro-semiconductor refrigeration plates are located inside the water tank. A micro water pump is fixedly connected to the left side wall of the water tank. The liquid outlet end of the micro water pump is fixedly connected to a refrigeration pipe. The end of the refrigeration pipe away from the micro water pump passes through the arc-shaped flexible plate and communicates with the water tank. The part of the refrigeration pipe located inside the arc-shaped flexible plate is in a serpentine structure.

[0018] Preferably, two ventilation holes are opened on the side wall of the protective cover, and a silver ion sterilization net is fixedly connected inside the ventilation holes.

[0019] Preferably, a silica gel pad is fixedly connected to the inner wall of the arc-shaped flexible plate, and a plurality of temperature sensors are arranged inside the silica gel pad.

[0020] Compared with the existing technology, the advantages of a fixed component for preventing catheter slippage in cardiology department are as follows:

[0021] 1. By setting the tensile sensor, the strap and the positioning component, when the patient uses the anti-slipping and fixing component to fix the PICC catheter, it can be operated with one hand, improving the convenience of use for the patient. At the same time, according to the patient's arm circumference, while ensuring that the anti-slipping and fixing component is firmly fixed on the patient's arm, it also avoids the problem that the anti-slipping and fixing component is too tight, which may cause poor blood circulation in the patient's arm.

[0022] 2. By setting the anti-pulling component, after the anti-slipping and fixing component is installed on the patient's arm, it can protect the part of the PICC catheter exposed outside, thus avoiding the problem of accidentally pulling the PICC catheter in daily life and ensuring the service life of the PICC catheter.

[0023] 3. By setting the detection component and the relief component, when the patient has a blood clot in the arm due to the indwelling of the PICC catheter and causes arm swelling, it can automatically detect the swelling condition of the patient's arm. When it is detected that the swelling degree of the patient's arm exceeds the warning value, it can automatically cool and relieve pain in the patient's arm, and at the same time promptly remind the patient to go to the hospital for treatment. Brief Description of the Drawings

[0024] Figure 1 is a schematic structural diagram of a fixed component for preventing catheter slippage in cardiology department provided by the present invention;

[0025] Figure 2 is a schematic internal structure diagram of the protective cover in a fixed component for preventing catheter slippage in cardiology department provided by the present invention;

[0026] Figure 3 is a fixed component for preventing catheter slippage in cardiology department provided by the present invention Figure 2Enlarged schematic diagram of part A;

[0027] Figure 4 It is a schematic diagram of the internal structure of the fixing frame in a catheter anti-slip and fixing component for preventing catheter slippage in cardiology provided by the present invention;

[0028] Figure 5 It is a schematic diagram of the shape structure of the refrigeration tube in a catheter anti-slip and fixing component for preventing catheter slippage in cardiology provided by the present invention;

[0029] Figure 6 It is a schematic diagram of the structure of the positioning component in a catheter anti-slip and fixing component for preventing catheter slippage in cardiology provided by the present invention;

[0030] Figure 7 It is a schematic diagram of the internal structure of the working box in a catheter anti-slip and fixing component for preventing catheter slippage in cardiology provided by the present invention.

[0031] In the figure: 1 arc-shaped soft board, 2 protective cover, 3 PICC catheter, 4 perforation, 5 tension sensor, 6 strap, 7 fixing frame, 8 winding roller, 9 PLC controller, 10 micro power supply, 11 positioning component, 111 rotating cylinder, 112 sliding rod, 12 sliding opening, 13 positioning ring, 14 positioning pin, 15 positioning disc, 16 anti-pulling component, 161 horizontal cylinder, 162 piston plate, 17 limiting block, 18 limiting sleeve, 19 annular pipe, 20 short pipe, 21 micro air pump, 22 air supply pipe, 23 first control valve, 24 air pressure sensor, 25 exhaust pipe, 26 exhaust valve, 27 protection component, 271 connecting pipe, 272 second control valve, 28 annular groove, 29 rubber pad, 30 detection component, 301 detection cylinder, 302 moving plate, 31 detection rod, 32 ball, 33 conductive frame, 34 resistance plate, 35 working box, 36 electromagnetic block, 37 partition board, 38 magnetic plate, 39 trigger plate, 40 trigger seat, 41 small electric push rod, 42 friction block, 43 friction plate, 44 relief component, 441 water tank, 442 micro semiconductor refrigeration plate, 45 micro water pump, 46 refrigeration tube, 47 ventilation hole, 48 silver ion sterilization net, 49 silica gel pad, 50 temperature sensor, 51 insertion cylinder. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0033] Such as Figures 1-7As shown in the figure, a fixation component for preventing catheter slippage in cardiology department includes an arc-shaped flexible plate 1 and a protective cover 2 arranged on the lower side wall of the arc-shaped flexible plate 1. The protective cover 2 is a hemispherical hollow structure. The protective cover 2 is communicated with the arc-shaped flexible plate 1. A perforation 4 matching the PICC catheter 3 is arranged on the lower side wall of the protective cover 2. A socket 51 matching the end of the PICC catheter 3 is connected to the side wall of the protective cover 2. The left end of the arc-shaped flexible plate 1 is fixedly connected with a tensile sensor 5. The sensing end of the tensile sensor 5 is fixedly connected with a strap 6. The lower side wall of the arc-shaped flexible plate 1 is fixedly connected with a fixing frame 7. A winding roller 8 is rotatably connected to the inner wall of the fixing frame 7. One end of the strap 6 far from the tensile sensor 5 is fixedly connected to the rod wall of the winding roller 8. A PLC controller 9 and a micro power supply 10 are fixedly connected to the inner wall of the fixing frame 7. It further includes:

[0034] A positioning component 11 is arranged at the lower end of the winding roller 8 for fixing the position of the winding roller 8. The positioning component 11 includes a rotating cylinder 111 slidably sleeved on the lower end of the winding roller 8. The lower end of the winding roller 8 extends out of the fixing frame 7. The same spring is fixedly connected between the rotating cylinder 111 and the winding roller 8. A sliding rod 112 is fixedly connected to the inner wall of the rotating cylinder 111. A sliding opening 12 matching the sliding rod 112 is arranged on the rod wall of the winding roller 8. A positioning ring 13 is fixedly sleeved on the outer wall of the rotating cylinder 111. Two positioning pins 14 are fixedly connected to the upper side wall of the positioning ring 13. A positioning disk 15 is fixedly connected to the lower side wall of the fixing frame 7. A plurality of positioning grooves matching the positioning pins 14 are arranged on the lower side wall of the positioning disk 15. When the patient uses the anti-slipping and fixing component to fix the PICC catheter 3, single-handed operation can be carried out, which improves the convenience of use for the patient. At the same time, according to the patient's arm circumference, while ensuring that the anti-slipping and fixing component is firmly fixed on the patient's arm, the problem that the anti-slipping and fixing component is too tight and causes poor blood circulation in the patient's arm can be avoided;

[0035] The anti-pulling component 16 is arranged on the lower side wall of the protective cover 2 and is used for fixing the PICC catheter 3. The anti-pulling component 16 includes two horizontal cylinders 161 fixedly connected to the lower side wall of the protective cover 2. The horizontal cylinders 161 are fixedly connected to the protective cover 2 through brackets. A piston plate 162 is slidably arranged in each of the two horizontal cylinders 161. A same spring is fixedly connected between the piston plate 162 and the protective cover 2. A limiting block 17 is fixedly connected to the side wall of the piston plate 162 away from the spring. A limiting sleeve 18 is fixedly sleeved on the outer wall of the PICC catheter 3. Limiting grooves matching with the limiting block 17 are formed on both the left and right sides of the limiting sleeve 18. The outer walls of the two horizontal cylinders 161 are fixedly connected with a same annular pipe 19. A same short pipe 20 is fixedly communicated between the annular pipe 19 and the horizontal cylinders 161. A micro air pump 21 is fixedly connected to the outer wall of the protective cover 2. A same air supply pipe 22 is fixedly communicated between the air outlet end of the micro air pump 21 and the annular pipe 19. A first control valve 23 is arranged in the air supply pipe 22. A pressure sensor 24 is arranged at the air outlet end of the micro air pump 21. The pressure sensor 24 is electrically connected to the PLC controller 9. An exhaust pipe 25 is arranged at the air outlet end of the micro air pump 21, and an exhaust valve 26 is arranged in the exhaust pipe 25. After the anti-slip and anti-detachment fixing component is installed on the patient's arm, the part of the PICC catheter 3 exposed to the outside can be protected, thus avoiding the problem of accidentally pulling the PICC catheter 3 in daily life and ensuring the service life of the PICC catheter 3;

[0036] The protection component 27 is arranged inside the protective cover 2 to prevent external bacteria from entering the puncture point of the PICC catheter 3. The protection component 27 includes a connecting pipe 271 fixedly communicated with the air outlet end of the micro air pump 21. A second control valve 272 is arranged in the connecting pipe 271. An annular groove 28 is formed on the inner wall of the through hole 4. The upper end of the connecting pipe 271 is communicated with the annular groove 28. A rubber pad 29 arranged on the outer wall of the annular groove 28 is fixedly connected to the inner wall of the through hole 4. After the anti-slip and anti-detachment fixing component is installed on the patient's arm, the part of the PICC catheter 3 exposed to the outside can be protected, thus avoiding the problem of accidentally pulling the PICC catheter 3 in daily life and ensuring the service life of the PICC catheter 3;

[0037] The detection component 30 is arranged on the inner wall of the fixing frame 7 and is used to detect the swelling degree of the patient's arm. The detection component 30 includes a detection cylinder 301 fixedly inserted on the side wall of the fixing frame 7. The right inner wall of the detection cylinder 301 is fixedly connected with a moving plate 302 through a spring. The left side wall of the moving plate 302 is fixedly connected with a detection rod 31. The left end of the detection rod 31 is fixedly connected with a ball 32. The left end of the ball 32 extends out of the detection cylinder 301 and contacts the strap 6. The right side wall of the moving plate 302 is fixedly connected with a conductive frame 33. The conductive frame 33 is electrically connected to the micro power supply 10. The rear inner wall of the detection cylinder 301 is inlaid with a resistance plate 34. The lower side wall of the fixing frame 7 is fixedly connected with a working box 35. The right inner wall of the working box 35 is fixedly connected with an electromagnet 36. The left end of the resistance plate 34 is electrically connected to the electromagnet 36. The left side wall of the working box 35 is fixedly connected with a partition plate 37. The left inner wall of the working box 35 is fixedly connected with two magnetic plates 38 through two springs respectively. The upper side wall of the lower magnetic plate 38 is fixedly connected with a trigger plate 39. The lower side wall of the lower trigger plate 39 is fixedly connected with a trigger seat 40. The trigger plate 39 is electrically connected to the micro power supply 10. The trigger seat 40 is electrically connected to the PLC controller 9. The side wall of the partition plate 37 is provided with openings that match the trigger plate 39 and the trigger seat 40. The right side wall of the upper magnetic plate 38 is fixedly connected with a small electric push rod 41. The moving end of the small electric push rod 41 is fixedly connected with a friction block 42. The upper inner wall of the working box 35 is inlaid with a friction plate 43, which can detect the patient's arm circumference;

[0038] The relief component 44 is arranged on the inner wall of the fixing frame 7 and is used to relieve the pain of the patient's arm. The relief component 44 includes a water tank 441 fixedly connected to the inner wall of the fixing frame 7. A plurality of micro-semiconductor refrigeration plates 442 are inserted into the right side wall of the water tank 441. The refrigerating ends of the micro-semiconductor refrigeration plates 442 are located inside the water tank 441. The left side wall of the water tank 441 is fixedly communicated with a micro water pump 45. The liquid outlet end of the micro water pump 45 is fixedly communicated with a refrigerating pipe 46. The end of the refrigerating pipe 46 far from the micro water pump 45 passes through the arc-shaped soft plate 1 and is communicated with the water tank 441. The part of the refrigerating pipe 46 located inside the arc-shaped soft plate 1 is of a serpentine structure, which can cool and relieve the pain of the patient's arm.

[0039] Two ventilation holes 47 are opened on the side wall of the protective cover 2, and a silver ion sterilization net 48 is fixedly connected inside the ventilation holes 47, which not only ensures the air permeability of the puncture point of the patient's arm, but also prevents external bacteria from entering the protective cover 2.

[0040] The inner wall of the arc-shaped soft plate 1 is fixedly connected with a silica gel pad 49, and a plurality of temperature sensors 50 are arranged inside the silica gel pad 49, which improves the comfort of the arc-shaped soft plate 1 and can detect the temperature of the patient's arm.

[0041] The operating principle of the present invention is described as follows: The patient passes the right arm with the PICC catheter 3 indwelling through between the arc-shaped flexible plate 1 and the strap 6 (the venous anatomical structure of the right arm is more conducive to the insertion and indwelling of the PICC catheter 3 in most cases). At this time, the strap 6 is not tightened, and the size of the arc-shaped flexible plate 1 is relatively large. The patient can move the arc-shaped flexible plate 1 to the puncture site of the PICC catheter 3, so that the protective cover 2 moves below the PICC catheter 3 (the patient needs to rotate the right arm to make the PICC catheter 3 face downward). Then the patient releases the arc-shaped flexible plate 1 with the left hand and guides the PICC catheter 3 through the perforation 4 with the left side. Then the patient pulls up the arc-shaped flexible plate 1, so that the arc-shaped flexible plate 1 and the protective cover 2 move upward, and the protective cover 2 moves to the root of the PICC catheter 3 exposed to the outside. Then the patient rotates the right arm to place the transfer point of the PICC catheter 3 upward, and the right arm will drive the side of the arc-shaped flexible plate 1 with the fixing frame 7 on the surface toward the inside of the body, and squeeze the arc-shaped flexible plate 1 in the direction close to the body, so that the detection cylinder 301 is squeezed against the patient's body, thereby temporarily fixing the arc-shaped flexible plate 1. Then the patient's left hand can pull the rotating cylinder 111, so that the rotating cylinder 111 drives the positioning pin 14 to disengage from the positioning groove on the surface of the positioning disk 15. Then the patient rotates the rotating cylinder 111, and the rotating cylinder 111 will drive the winding roller 8 to rotate through the mutual cooperation of the sliding rod 112 and the sliding port 12 to tighten the strap 6. During the tightening process of the strap 6, the two ends of the arc-shaped flexible plate 1 will be pulled, so that the arc-shaped flexible plate 1 fits with the patient's right arm. And during the tightening process of the strap 6, the tension sensor 5 provided at the left end of the arc-shaped flexible plate 1 can detect the tension of the strap 6. When it is detected that the tension of the strap 6 reaches the set threshold value (4N), the tension sensor 5 will transmit an electrical signal to the PLC controller 9. After receiving this electrical signal, the PLC controller 9 will control the buzzer inside to work, reminding the patient to stop rotating the rotating cylinder 111. Then push the rotating cylinder 111, and the rotating cylinder 111 will drive the positioning pin 14 to insert into the corresponding positioning groove on the surface of the positioning disk 15 through the positioning ring 13 (the number of positioning grooves is relatively large, and the distance between adjacent two positioning grooves is relatively close. Even if the positioning pin 14 rotates a certain angle to insert into the positioning groove, it will not affect the tension of the strap 6), and then the fixing component can be installed. Then the patient can transmit a signal to the PLC controller 9 through an external remote control device. After receiving this signal, the PLC controller 9 will control the micro air pump 21 and the first control valve 23 to work. The micro air pump 21 will transport the external gas through the air supply pipe 22 to the annular pipe 19, and through the annular pipe 19 and the short pipe 20, the gas will be transported into the two horizontal cylinders 161, so that the air pressure on one side of the piston plate 162 increases. The piston plate 162 will drive the limiting block 17 to insert into the limiting groove on the surface of the limiting sleeve 18 to fix the limiting sleeve 18 and the PICC catheter 3. When the limiting block 17 contacts the limiting sleeve 18, the air pressure inside the horizontal cylinder 161 will continue to increase,After the air pressure inside the horizontal cylinder 161 detected by the air pressure sensor 24 reaches the set threshold value (400 kPa), the air pressure sensor 24 will control the first control valve 23 to close through the PLC controller 9 and control the second control valve 272 to open. Then the gas will be transported into the annular groove 28, increasing the air pressure inside the annular groove 28, so that the rubber pad 29 inside the perforation 4 is inflated. During the inflation process, the rubber pad 29 will contact the PICC catheter 3, thus sealing the perforation 4. When the air pressure sensor 24 detects that the air pressure inside the annular groove 28 reaches the set threshold value (300 kPa), the air pressure sensor 24 will control the micro air pump 21 to stop working through the PLC controller 9, thereby fixing the PICC catheter 3 well;

[0042] While the patient rotates the winding roller 8 to wind the bandage 6, the size of the bandage 6 wound around the outer side of the winding roller 8 will gradually increase, and the bandage 6 will push against the ball 32. The ball 32 will drive the moving plate 302 and the conductive frame 33 to move into the detection cylinder 301 through the detection rod 31. While controlling the buzzer to work, the PLC controller 9 will also control the conductive frame 33 to be connected to the micro power supply 10 for five seconds. The conductive frame 33 contacts the resistance plate 34, and the left end of the resistance plate 34 is electrically connected to the electromagnetic block 36. When the conductive frame 33 is powered on, the current inside the micro power supply 10 will be transmitted to the electromagnetic block 36 through the conductive frame 33 and the left end of the resistance plate 34, causing the electromagnetic block 36 to be powered on to generate a magnetic force. The electromagnetic block 36 will attract the two magnetic plates 38 to move a certain distance to the right together. When the conductive frame 33 is powered on for three seconds, the PLC controller 9 will control the small electric push rod 41 to work. The small electric push rod 41 will drive the friction block 42 to press against the friction plate 43, and through the frictional force between the friction block 42 and the friction plate 43, the position of the upper magnetic plate 38 and the trigger seat 40 below this magnetic plate 38 will be fixed. When the conductive frame 33 is powered on for five seconds, the conductive frame 33 will be disconnected from the micro power supply 10, and the electromagnetic block 36 will also lose its magnetic force. The lower magnetic plate 38 will move to the initial position to the left under the pulling force of the spring. When the patient's arm swells due to thrombosis later (The PICC catheter 3 is placed in the blood vessel for a long time, which will cause certain damage to the vascular endothelium. After the vascular endothelium is damaged, the subendothelial collagen fibers are exposed, which will activate the coagulation factors, thereby initiating the coagulation process. At the same time, as a foreign body, the catheter will change the flow state of the blood around it, the blood flow becomes slow, and it is easy to form thrombus. The patient may have symptoms such as swelling, pain, increased skin temperature, and superficial vein dilation on the puncture side limb. If the thrombus detaches, it may also cause serious complications such as pulmonary embolism, presenting symptoms such as chest pain, dyspnea, and hemoptysis), when reinstalling the fixing component (The patient has relatively scarce medical knowledge and may not know the harm caused by thrombosis. And the patient may remove the fixing device at night. Therefore, when reinstalling the device, the arm circumference of the patient will be detected to judge whether there is thrombosis), after the winding roller 8 only winds a small section of the bandage 6, the tension sensor 5 will detect that the tension reaches 4N. At this time, the PLC controller 9 will repeat the above steps to make the electromagnetic block 36 generate a magnetic force. Since there is less bandage 6 wound around the surface of the winding roller 8 and the size is relatively small, the distance that the ball 32 and the detection rod 31 drive the conductive frame 33 to move to the right is shorter, and the conductive frame 33 will contact the position near the left end of the resistance plate 34. With the voltage of the micro power supply 10 unchanged, the current transmitted to the circuit of the electromagnetic block 36 will increase, and the lower magnetic plate 38 will drive the trigger plate 39 to move a longer distance to the right, so that the trigger plate 39 is separated from the trigger seat 40. During the process of the conductive frame 33 being powered on, the PLC controller 9 will control the trigger plate 39 to be electrically connected to the micro power supply 10, and the trigger seat 40 is electrically connected to the PLC controller 9,Since the trigger board 39 and the trigger base 40 are separated and not in contact at this time, the electrical signal cannot be transmitted to the PLC controller 9 through the trigger base 40. After the PLC controller 9 fails to receive this electrical signal, it will remind the patient to go to the hospital for further examination through the internal voice module; when the patient wears the fixing device and the arm swells due to thrombosis, the swollen arm will increase the tension on the strap 6. After exceeding 5N, when the tension sensor 5 detects this situation, it will control the voice module inside the PLC controller 9 to remind the patient to go to the hospital for further examination. At the same time, the PLC controller 9 will also control the micro-semiconductor refrigeration plate 442 and the micro water pump 45 to work. The micro-semiconductor refrigeration plate 442 is used to cool the water inside the water tank 441, and at the same time, the micro water pump 45 is used to transport the cooled water to the refrigeration tube 46, and the refrigeration tube 46 is used to cool and relieve pain on the patient's arm, alleviating the patient's discomfort.

[0043] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A cardiology catheter anti-slip fixing assembly, comprising an arc-shaped soft board (1) and a protective cover (2) arranged on the lower side wall of the arc-shaped soft board (1), wherein the protective cover (2) is a hemispherical hollow structure, the protective cover (2) and the arc-shaped soft board (1) are connected, the lower side wall of the protective cover (2) is provided with a through hole (4) matching with a PICC catheter (3), the side wall of the protective cover (2) is connected with an insert (51) matching with the end of the PICC catheter (3), and the arc-shaped soft board (1) is provided with a through hole (4) matching with a PICC catheter (3). 1), a tension sensor (5) is fixedly connected to the left end, a sensing end of the tension sensor (5) is fixedly connected to a binding strap (6), a lower side wall of the arc-shaped soft board (1) is fixedly connected to a fixing frame (7), an inner wall of the fixing frame (7) is rotatably connected to a winding roller (8), an end of the binding strap (6) away from the tension sensor (5) is fixedly connected to the rod wall of the winding roller (8), and a PLC controller (9) and a micro power supply (10) are fixedly connected to the inner wall of the fixing frame (7), characterized in that: Also includes: A positioning assembly (11), arranged at the lower end of the winding roller (8), and used for fixing the position of the winding roller (8); An anti-pull component (16), arranged on the lower side wall of the protective cover (2), and used for fixing the PICC catheter (3); A protection component (27) is arranged inside the protection cover (2) to prevent external bacteria from entering the puncture point of the PICC catheter (3); A detection component (30) is arranged on the inner wall of the fixing frame (7) and is used to detect the degree of swelling of the patient's arm; A relief component (44) is arranged on the inner wall of the fixing frame (7) and is used to relieve pain in the patient's arm.

2. A cardiology catheter anti-slip fixation assembly according to claim 1, characterized in that: The positioning assembly (11) comprises a rotating drum (111) slidably sleeved on the lower end of the winding roller (8), the lower end of the winding roller (8) extends out of the fixed frame (7), the rotating drum (111) and the winding roller (8) are fixedly connected by a same spring, the inner wall of the rotating drum (111) is fixedly connected with a sliding rod (112), the rod wall of the winding roller (8) is provided with a sliding opening (12) that matches the sliding rod (112), the outer wall of the rotating drum (111) is fixedly sleeved with a positioning ring (13), the upper side wall of the positioning ring (13) is fixedly connected with two positioning pins (14), the lower side wall of the fixed frame (7) is fixedly connected with a positioning plate (15), and the lower side wall of the positioning plate (15) is provided with a plurality of positioning grooves that match the positioning pins (14).

3. A cardiology catheter anti-slip fixation assembly according to claim 1, characterized in that: The anti-pull assembly (16) comprises two transverse cylinders (161) fixedly connected to the lower side wall of the protective cover (2), the transverse cylinders (161) are fixedly connected to the protective cover (2) through a bracket, piston plates (162) are slidably arranged in the two transverse cylinders (161), a same spring is fixedly connected between the piston plate (162) and the protective cover (2), a side wall of the piston plate (162) away from the spring is fixedly connected to a limiting block (17), the outer wall of the PICC catheter (3) is fixedly sleeved with a limiting sleeve (18), and the left and right sides of the limiting sleeve (18) are provided with limiting grooves matching the limiting block (17), and the outer wall of the two transverse cylinders (161) is fixedly sleeved with a limiting sleeve (18). The protective cover (2) is fixedly connected to the same annular tube (19), the annular tube (19) and the horizontal tube (161) are fixedly connected to the same short tube (20), the outer wall of the protective cover (2) is fixedly connected to a micro air pump (21), the air outlet end of the micro air pump (21) and the annular tube (19) are fixedly connected to the same air supply pipe (22), a first control valve (23) is provided in the air supply pipe (22), the air outlet end of the micro air pump (21) is provided with an air pressure sensor (24), the air pressure sensor (24) and the PLC controller (9) are electrically connected, the air outlet end of the micro air pump (21) is provided with an exhaust pipe (25), and the exhaust pipe (25) is provided with an exhaust valve (26).

4. A cardiology catheter anti-slip fixation assembly according to claim 3, characterized in that: The protection component (27) comprises a connecting pipe (271) fixedly connected to the air outlet of the micro air pump (21), a second control valve (272) being arranged in the connecting pipe (271), an annular groove (28) being provided on the inner wall of the through hole (4), the upper end of the connecting pipe (271) being connected to the annular groove (28), and a rubber pad (29) arranged on the outer wall of the annular groove (28) being fixedly connected to the inner wall of the through hole (4).

5. A cardiology catheter anti-slip fixation assembly according to claim 1, characterized in that: The detection assembly (30) comprises a detection cylinder (301) fixedly inserted into the side wall of the fixed frame (7); the right inner wall of the detection cylinder (301) is fixedly connected to a movable plate (302) via a spring; the left wall of the movable plate (302) is fixedly connected to a detection rod (31); the left end of the detection rod (31) is fixedly connected to a ball (32); the left end of the ball (32) extends out of the detection cylinder (301) and contacts the binding belt (6); the right wall of the movable plate (302) is fixedly connected to a conductive frame (33); the conductive frame (33) is electrically connected to the micro power source (10); the rear inner wall of the detection cylinder (301) is inlaid with a resistor plate (34); the lower side wall of the fixed frame (7) is fixedly connected to a working box (35); the right inner wall of the working box (35) is fixedly connected to an electromagnetic block (36); the left end of the resistor plate (34) is electrically connected to the electromagnetic block (36); The working box (35) is electrically connected to the micro power source (10), and the trigger seat (40) is electrically connected to the PLC controller (9). The side wall of the dividing plate (37) is provided with an opening that matches the trigger plate (39) and the trigger seat (40). The right side wall of the magnetic plate (38) is fixedly connected to a small electric push rod (41), and the movable end of the small electric push rod (41) is fixedly connected to a friction block (42). The upper inner wall of the working box (35) is inlaid with a friction plate (43).

6. A cardiology catheter anti-slip fixation assembly according to claim 1, characterized in that: The mitigation component (44) comprises a water tank (441) fixedly connected to the inner wall of the fixing frame (7); a plurality of micro semiconductor refrigeration plates (442) are plugged into the right side wall of the water tank (441); the refrigeration end of the micro semiconductor refrigeration plate (442) is located in the water tank (441); the left side wall of the water tank (441) is fixedly connected to a micro water pump (45); the liquid outlet end of the micro water pump (45) is fixedly connected to a refrigeration pipe (46); the end of the refrigeration pipe (46) away from the micro water pump (45) passes through the arc-shaped soft plate (1) and is connected to the water tank (441); the portion of the refrigeration pipe (46) located in the arc-shaped soft plate (1) is a serpentine structure.

7. A cardiology catheter anti-slip fixation assembly according to claim 1, characterized in that: The side wall of the protective cover (2) is provided with two air holes (47), and a silver ion sterilization net (48) is fixedly connected inside the air holes (47).

8. The cardiology catheter anti-slip fixation assembly according to claim 1, characterized in that: A silicone pad (49) is fixedly connected to the inner wall of the arc-shaped soft board (1), and a plurality of temperature sensors (50) are arranged in the silicone pad (49).

Images