A blood extracorporeal purification pipeline with a blood extravasation monitoring module

Abstract

The present invention discloses a blood extracorporeal purification pipeline with a blood extravasation monitoring module, which relates to the technical field of blood purification, including a blood extracorporeal purification inflow tube, a blood purification pipeline mechanism, the blood purification pipeline mechanism including a blood purification pipeline inflow port, the blood purification pipeline inflow port is opened at one end of the blood extracorporeal purification inflow tube, and the blood extracorporeal purification inflow tube is connected to the blood extracorporeal purification pipeline through the blood purification pipeline inflow port. The present invention is designed and installed with a blood extravasation monitoring mechanism, and the blood extravasation trigger block is connected to the metal conductive sheet through the blood extravasation monitoring piston and the two wires are turned on, and then the blood extravasation alarm light, signal transmitter and blood extravasation speaker are triggered, so as to avoid the situation that medical staff cannot find blood extravasation in time, which causes health problems for patients, improves the safety of blood extracorporeal purification, and saves the time and energy of medical staff.

Description

Technical Field

[0001] The invention relates to the technical field of blood purification, in particular to an extracorporeal blood purification pipeline with a blood extravasation monitoring module. Background Art

[0002] The existing blood purification pipeline is mainly used to guide blood into extracorporeal circulation for material exchange and purification during treatment processes such as hemodialysis and hemofiltration. The Chinese patent application number 201720450776.2 discloses "a blood purification pipeline, including an arterial pipeline, a venous pipeline and a blood purifier connected between the arterial pipeline and the venous pipeline, an arterial puncture needle and a venous puncture needle are respectively installed at the ends of the arterial pipeline and the venous pipeline away from the blood purifier, and an arterial puncture needle is installed at the end of the arterial pipeline close to the arterial puncture needle. A heparin tube is connected to the pipeline between the arterial debubble device and the arterial puncture needle; a venous debubble device is installed at the end of the venous pipeline close to the venous puncture needle, a citrate branch pipeline is detachably connected to the pipeline between the arterial puncture needle and the heparin tube, and a calcium solution branch pipeline is detachably connected to the pipeline between the venous puncture needle and the venous debubble device. Thus, a blood purification pipeline with good compatibility is provided, and the citrate anticoagulation method is extended to ordinary blood purification equipment, which has the characteristics of ingenious conception, simple structure, easy production and low production cost. "

[0003] This comparative document only solves the problem of low-cost extracorporeal blood coagulation in blood purification pipelines. However, existing extracorporeal blood purification pipelines have certain shortcomings. For example, blood extravasation is prone to occur during extracorporeal blood purification. If it cannot be discovered and dealt with in time, it may cause health problems for patients. At the same time, when blood extravasation occurs in existing extracorporeal blood purification pipelines, it is often impossible to give timely alarm reminders for blood extravasation, nor can it be dealt with in time, resulting in an increased risk of complications caused by blood extravasation. Summary of the invention

[0004] The object of the present invention is to provide a blood extracorporeal purification pipeline with a blood extravasation monitoring module to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: an extracorporeal blood purification pipeline with a blood extravasation monitoring module, comprising an extracorporeal blood purification inflow tube;

[0006] A blood purification pipeline mechanism, the blood purification pipeline mechanism comprising a blood purification pipeline inlet, the blood purification pipeline inlet is opened at one end of the extracorporeal blood purification inlet tube, the extracorporeal blood purification inlet tube is connected to the extracorporeal blood purification pipeline through the blood purification pipeline inlet;

[0007] A blood extravasation monitoring mechanism, the blood extravasation monitoring mechanism comprising a blood extravasation monitoring tube, the blood extravasation monitoring tube being fixedly mounted on an end of the blood extracorporeal purification inflow tube away from the blood purification pipeline inflow port through integral molding;

[0008] A blood extravasation blocking mechanism, the blood extravasation blocking mechanism comprising a protective shell, the protective shell being fixedly sleeved on an end of the blood extracorporeal purification inflow tube away from an inflow port of the blood purification pipeline;

[0009] A blood extravasation alarm mechanism comprises a blood extravasation alarm light, and the blood extravasation alarm light is fixedly installed in the middle of one end of the protective shell close to the blood extracorporeal purification inflow tube by bolts.

[0010] Preferably, the blood purification pipeline mechanism includes a pressurized inlet, a blood shunt tube, a blood confluence tube, a blood extracorporeal purification outflow tube and a blood purification pipeline outflow outlet, the pressurized inlet is opened at the end away from the blood purification pipeline inflow inlet, the cross-sectional diameter of the pressurized inlet is smaller than the cross-sectional diameter of the blood purification pipeline inflow inlet, there are two blood shunt tubes, both are integrally formed and inserted into the blood extracorporeal purification inflow tube at the upper and lower sides of the end where the pressurized inlet is located, the end of the blood confluence tube close to the blood extracorporeal purification inflow tube is integrally formed and sleeved on the ends of the two blood shunt tubes away from the blood extracorporeal purification inflow tube, the end of the blood extracorporeal purification outflow tube close to the blood extracorporeal purification inflow tube is fixedly installed on the end of the blood confluence tube away from the blood extracorporeal purification inflow tube through integral molding, the blood purification pipeline outflow outlet is opened at the end of the blood extracorporeal purification outflow tube away from the blood extracorporeal purification inflow tube, and the blood purification pipeline outflow outlet is connected to the blood extracorporeal purification pipeline through the blood extracorporeal purification outflow tube.

[0011] Preferably, the blood extravasation monitoring mechanism includes an extravasation blood inlet, a blood extravasation monitoring ball valve and a blood extravasation monitoring piston, the extravasation blood inlet is opened at one end of the blood extravasation monitoring tube close to the pressurized inlet, a valve slot is opened in the end of the blood extracorporeal purification inlet tube away from the blood purification pipeline inlet, and the valve slot is located between the pressurized inlet and the extravasation blood inlet, one end of the two blood shunt tubes located in the blood extracorporeal purification inlet tube is connected to the valve slot, the blood extravasation monitoring ball valve is installed in the valve slot by sliding, the diameter of a half cross-section of the blood extravasation monitoring ball valve is larger than the cross-sectional diameter of the pressurized inlet and the cross-sectional diameter of the extravasation blood inlet, the blood extravasation monitoring piston is installed in the blood extravasation monitoring tube by insertion and sliding, the cross-sectional diameter of the end of the blood extravasation monitoring piston close to the blood extracorporeal purification inlet tube is equal to the cross-sectional diameter of the inner wall of the blood extravasation monitoring tube.

[0012] Preferably, the blood extravasation monitoring mechanism includes a blood extravasation trigger block, an air outlet and a connecting base, the blood extravasation trigger block is fixedly installed in the middle of one end of the blood extravasation monitoring piston away from the extravasated blood inlet by means of threads, the blood extravasation trigger block is in a cylindrical structure and is made of a metal conductive material, the air outlet is arranged in the middle of one end of the blood extravasation monitoring tube away from the blood extracorporeal purification inflow tube, the cross-sectional diameter of the air outlet is equal to the cross-sectional diameter of the blood extravasation trigger block, the blood extravasation trigger block is inserted and slidably installed in the air outlet, the connecting base is fixedly installed in the middle of one end of the blood extravasation monitoring tube away from the blood extracorporeal purification inflow tube and is located at the air outlet by means of integral molding, and the cross-sectional diameter of the inner wall of the connecting base is equal to the cross-sectional diameter of the outer wall of the blood extravasation trigger block.

[0013] Preferably, the blood extravasation monitoring mechanism includes a metal conductive sheet, a wire, a shunt tube fixing plate and a confluence tube fixing plate. A square groove is provided in the middle of the connecting base, and the square groove divides the connecting base into two parts. There are two metal conductive sheets, which are respectively fixedly installed in the middle of the two connecting bases by insertion. The two metal conductive sheets are made of metal conductive material. The blood extravasation trigger block is slidably connected to the two metal conductive sheets. There are two wires, which are respectively fixedly installed by welding on the ends of the two metal conductive sheets away from the connecting base. The shunt tube fixing plate is fixedly sleeved on the outside of the blood extravasation monitoring tube, close to the end of the blood extracorporeal purification inflow tube. The two blood shunt tubes are respectively fixedly installed on the two ends of the shunt tube fixing plate by insertion. There are two groups of confluence tube fixing plates, which are evenly fixedly installed on the end of the blood extracorporeal purification monitoring tube away from the blood extracorporeal purification inflow tube by bolts. The end of the confluence tube fixing plate away from the blood extracorporeal purification inflow tube is fixedly installed on the end of the blood confluence tube close to the blood extracorporeal purification inflow tube by integral molding.

[0014] Preferably, the blood extravasation blocking mechanism includes a blocking groove, a bidirectional threaded rod, a blocking slider and a blocking clamping rod. The end of the protective shell away from the blood extracorporeal purification inflow tube is fixedly sleeved on the outside of the blood extracorporeal purification outflow tube. The two ends of the blocking groove are fixedly installed in the middle of the protective shell at the blood confluence tube by bolts. The two ends of the bidirectional threaded rod are movably installed in the blocking groove by bearings. There are two blocking sliders and they are movably installed at the two ends of the bidirectional threaded rod by bolts respectively. The two blocking sliders are both slidably installed in the blocking groove. There are two blocking clamping rods and they are fixedly installed in the middle of the two blocking sliders close to the blood shunt tube by bolts respectively. The two blocking clamping rods are inserted and slidably installed in the middle of the side of the blocking groove close to the blood shunt tube.

[0015] Preferably, the blood extravasation blocking mechanism includes a motor mounting plate, a blood extravasation blocking motor, a first gear and a second gear. The motor mounting plate is fixedly installed by bolts on a side of the blocking groove away from the blood shunt tube near the middle. The blood extravasation blocking motor is fixedly installed by bolts in the middle of a side of the motor mounting plate away from the center of the blocking groove. The output shaft of the blood extravasation blocking motor is installed in the middle of the motor mounting plate by insertion. The first gear is fixedly installed on the output shaft of the blood extravasation blocking motor by bolts. The second gear is fixedly sleeved in the middle of the bidirectional threaded rod by bolts. The ends of the two wires away from the metal conductive sheet are electrically connected in the junction box of the blood extravasation blocking motor. The first gear and the second gear are meshingly connected.

[0016] Preferably, the blood extravasation alarm mechanism includes a battery, a signal transmitter, a connecting plate, a blood extravasation speaker and a speaker hole. The battery is fixedly installed on one end of the blocking slot close to the blood extracorporeal purification inflow tube by bolts, the signal transmitter is fixedly installed on one end of the blocking slot close to the blood extracorporeal purification inflow tube and away from the battery by bolts, the connecting plate is fixedly installed in the middle of the blocking slot close to the blood extracorporeal purification outflow tube by bolts, the blood extravasation speaker is fixedly installed in the middle of the connecting plate close to the blood confluence tube by bolts, and the speaker hole is opened at one end of the protective shell close to the blood extracorporeal purification outflow tube.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention is designed and installed with a blood extravasation monitoring mechanism. When blood extravasation occurs, the extravasated blood pushes the blood extravasation monitoring piston, and the blood extravasation trigger block is connected to the metal conductive sheet through the blood extravasation monitoring piston, and the two wires are connected, and then the blood extravasation alarm light, signal transmitter and blood extravasation speaker are triggered to monitor whether blood extravasation occurs. When blood extravasation occurs, an alarm is given in time to avoid medical staff failing to find blood extravasation in time, which leads to health problems for patients, improves the safety of blood extracorporeal purification, and saves the time and energy of medical staff;

[0019] 2. The present invention is designed and installed with a blood extravasation blocking mechanism. When blood extravasation occurs, the blood extravasation blocking motor is triggered and started by the blood extravasation monitoring mechanism. The blood extravasation blocking motor drives two blocking clamps to clamp the blood confluence tube, so that the extravasated blood cannot continue to extravasate. While the blood extravasation alarm mechanism alarms the blood extravasation, the blood extravasation is preliminarily treated in time to avoid continuous blood extravasation, thereby avoiding the continuous increase of the complication risk caused by blood extravasation, assisting medical staff to deal with blood extravasation in time, and improving the safety of extracorporeal blood purification. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Provides an overall structural diagram for an embodiment of the present invention;

[0021] Figure 2 A schematic diagram of the upper half cross-sectional structure provided by an embodiment of the present invention;

[0022] Figure 3 A schematic diagram of the cross-sectional structure of the lower half provided by an embodiment of the present invention;

[0023] Figure 4 A schematic diagram of the front side of the internal structure of the protective shell provided by an embodiment of the present invention;

[0024] Figure 5 A schematic diagram of the rear side of the internal structure of the protective shell provided by an embodiment of the present invention;

[0025] Figure 6 The embodiment of the present invention provides Figure 5 Enlarged structural diagram at A in the middle.

[0026] In the figure: 1. Blood extracorporeal purification inflow tube; 2. Blood purification pipeline mechanism; 201. Blood purification pipeline inflow port; 202. Pressurized inflow port; 203. Blood shunt tube; 204. Blood confluence tube; 205. Blood extracorporeal purification outflow tube; 206. Blood purification pipeline outflow port; 3. Blood extravasation monitoring mechanism; 301. Blood extravasation monitoring tube; 302. Extravasated blood inflow port; 303. Blood extravasation monitoring ball valve; 304. Blood extravasation monitoring piston; 305. Blood extravasation trigger block; 306. Air outlet; 307. Connecting base; 308. Metal guide Electric sheet; 309, wire; 310, shunt pipe fixing plate; 311, confluence pipe fixing plate; 4, blood extravasation blocking mechanism; 401, protective shell; 402, blocking groove; 403, bidirectional threaded rod; 404, blocking slider; 405, blocking clamping rod; 406, motor mounting plate; 407, blood extravasation blocking motor; 408, first gear; 409, second gear; 5, blood extravasation alarm mechanism; 501, blood extravasation alarm light; 502, battery; 503, signal transmitter; 504, connecting plate; 505, blood extravasation speaker; 506, speaker hole. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of 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.

[0028] See also Figure 1-6 , the present invention provides a technical solution: a blood extracorporeal purification pipeline with a blood extravasation monitoring module, comprising a blood extracorporeal purification inflow tube 1;

[0029] The blood purification pipeline mechanism 2 includes a blood purification pipeline inlet 201, which is opened at one end of the extracorporeal blood purification inlet tube 1, and the extracorporeal blood purification inlet tube 1 is connected to the extracorporeal blood purification pipeline through the blood purification pipeline inlet 201;

[0030] The blood extravasation monitoring mechanism 3 includes a blood extravasation monitoring tube 301, which is fixedly mounted on one end of the blood extracorporeal purification inflow tube 1 away from the blood purification pipeline inflow port 201 through integral molding;

[0031] The blood extravasation blocking mechanism 4 includes a protective shell 401, and the protective shell 401 is fixedly sleeved on the end of the blood extracorporeal purification inflow tube 1 away from the blood purification pipeline inflow port 201;

[0032] The blood extravasation alarm mechanism 5 comprises a blood extravasation alarm light 501 , which is fixedly mounted in the middle of one end of the protective shell 401 close to the blood extracorporeal purification inflow tube 1 by means of bolts.

[0033] The blood purification pipeline mechanism 2 includes a pressurized inlet 202, a blood shunt tube 203, a blood confluence tube 204, a blood extracorporeal purification outflow tube 205 and a blood purification pipeline outflow outlet 206. The pressurized inlet 202 is opened at one end away from the blood purification pipeline inlet 201. The cross-sectional diameter of the pressurized inlet 202 is smaller than the cross-sectional diameter of the blood purification pipeline inlet 201. There are two blood shunt tubes 203, which are integrally formed and inserted into the blood extracorporeal purification inflow tube 1 at the upper and lower sides of the end where the pressurized inlet 202 is located. The end of the blood confluence tube 204 close to the blood extracorporeal purification inflow tube 1 is integrally formed and sleeved on the two blood shunt tubes 203 far away. The end of the extracorporeal purification inflow tube 1 is away from the extracorporeal purification blood inflow tube 1, and the end of the extracorporeal purification outflow tube 205 close to the extracorporeal purification inflow tube 1 is fixedly mounted on the end of the blood confluence tube 204 away from the extracorporeal purification inflow tube 1 through integral molding. The blood purification pipeline outflow port 206 is arranged at the end of the extracorporeal purification outflow tube 205 away from the extracorporeal purification blood inflow tube 1, and the blood purification pipeline outflow port 206 is connected to the extracorporeal purification blood pipeline through the extracorporeal purification outflow tube 205; the blood in the extracorporeal purification inflow tube 1 is introduced into the blood confluence tube 204 through the blood shunt tube 203, and the blood is introduced into the extracorporeal purification outflow tube 205 through the blood confluence tube 204;

[0034] The blood extravasation monitoring mechanism 3 comprises an extravasation blood inlet 302, a blood extravasation monitoring ball valve 303 and a blood extravasation monitoring piston 304. The extravasation blood inlet 302 is arranged at one end of the blood extravasation monitoring tube 301 close to the pressurized inlet 202. A valve slot is arranged in one end of the blood extracorporeal purification inlet tube 1 away from the blood purification pipeline inlet 201, and the valve slot is located between the pressurized inlet 202 and the extravasation blood inlet 302. One end of the two blood shunt tubes 203 located in the blood extracorporeal purification inlet tube 1 is communicated with the valve slot. The blood extravasation monitoring ball valve 303 is installed in the valve slot by sliding. The diameter of the half cross section of the blood extravasation monitoring ball valve 303 is larger than the pressurized inlet. The cross-sectional diameter of the inlet 202 and the cross-sectional diameter of the extravasated blood inlet 302, the blood extravasation monitoring piston 304 is inserted and slidably installed in the blood extravasation monitoring tube 301, and the cross-sectional diameter of the end of the blood extravasation monitoring piston 304 close to the blood extracorporeal purification inlet tube 1 is equal to the cross-sectional diameter of the inner wall of the blood extravasation monitoring tube 301; the pressurized inlet 202 or the extravasated blood inlet 302 is closed by the blood extravasation monitoring ball valve 303. When the extracorporeal blood purification is normally performed, the blood extravasation monitoring ball valve 303 closes the extravasated blood inlet 302. When blood extravasation occurs, the extravasated blood pushes the blood extravasation monitoring ball valve 303 open, so that the pressurized inlet 202 is closed;

[0035] The blood extravasation monitoring mechanism 3 includes a blood extravasation trigger block 305, an air outlet 306 and a connecting base 307. The blood extravasation trigger block 305 is fixedly installed in the middle of one end of the blood extravasation monitoring piston 304 away from the extravasated blood inlet 302 through threads. The blood extravasation trigger block 305 is cylindrical and made of metal conductive material. The air outlet 306 is arranged in the middle of one end of the blood extravasation monitoring tube 301 away from the blood extracorporeal purification inflow tube 1. The cross-sectional diameter of the air outlet 306 is equal to the cross-sectional diameter of the blood extravasation trigger block 305. The blood extravasation trigger block 305 is inserted and slidably installed in the air outlet 306. The connecting base 307 is fixedly installed in the middle of one end of the blood extravasation monitoring tube 301 away from the blood extracorporeal purification inflow tube 1 and is located at the air outlet 306 through integral molding. The inner wall cross-sectional diameter of the connecting base 307 is equal to the cross-sectional diameter of the outer wall of the blood extravasation trigger block 305. The blood extravasation monitoring piston 304 pushes the blood extravasation trigger block 305 to move.

[0036] The blood extravasation monitoring mechanism 3 includes a metal conductive sheet 308, a wire 309, a shunt tube fixing plate 310 and a confluence tube fixing plate 311. A square groove is provided in the middle of the connecting base 307, and the square groove divides the connecting base 307 into two parts. There are two metal conductive sheets 308, which are respectively fixedly installed in the middle of the two connecting bases 307 by insertion. The two metal conductive sheets 308 are both made of metal conductive materials. The blood extravasation trigger block 305 is slidably connected to the two metal conductive sheets 308. There are two wires 309, which are respectively fixedly installed on one end of the two metal conductive sheets 308 away from the connecting base 307 by welding. The shunt tube fixing plate 310 is fixedly sleeved on the outside of the blood extravasation monitoring tube 301, close to one end of the blood extracorporeal purification inflow tube 1. The two The blood shunt tubes 203 are respectively fixedly installed at the two ends of the shunt tube fixing plate 310 by insertion. There are two groups of merging tube fixing plates 311, which are evenly fixedly installed with bolts on the end of the blood extravasation monitoring tube 301 away from the blood extracorporeal purification inflow tube 1. The end of the merging tube fixing plate 311 away from the blood extracorporeal purification inflow tube 1 is fixedly installed on the end of the blood merging tube 204 close to the blood extracorporeal purification inflow tube 1 by integral molding; the blood extravasation trigger block 305 is moved into the connecting base 307 so that the blood extravasation trigger block 305 is adjacent to the metal conductive sheet 308, thereby conducting the two wires 309, fixing the two blood shunt tubes 203 by the shunt tube fixing plate 310, and fixing the blood merging tube 204 by the merging tube fixing plate 311;

[0037] The blood extravasation blocking mechanism 4 includes a blocking groove 402, a bidirectional threaded rod 403, a blocking slider 404 and a blocking clamp rod 405. The end of the protective shell 401 away from the blood extracorporeal purification inflow tube 1 is fixedly sleeved on the outside of the blood extracorporeal purification outflow tube 205. The two ends of the blocking groove 402 are fixedly installed in the middle of the protective shell 401 at the blood confluence tube 204 by bolts. The two ends of the bidirectional threaded rod 403 are movably installed in the blocking groove 402 by bearings. There are two blocking sliders 404 and they are movably installed by bolts. Installed at both ends of the bidirectional threaded rod 403, the two blocking sliders 404 are both slidably installed in the blocking groove 402, there are two blocking clamping rods 405 and they are respectively fixed by bolts in the middle of the two blocking sliders 404 close to the blood shunt tube 203, and the two blocking clamping rods 405 are inserted and slidably installed in the middle of the side of the blocking groove 402 close to the blood shunt tube 203; the blood confluence tube 204 is clamped by the two blocking clamping rods 405, so that the extravasated blood can no longer enter the blood extracorporeal purification pipeline;

[0038] The blood extravasation blocking mechanism 4 includes a motor mounting plate 406, a blood extravasation blocking motor 407, a first gear 408 and a second gear 409. The motor mounting plate 406 is fixedly mounted on the blocking groove 402 near the middle of the side away from the blood shunt tube 203 by bolts, and the blood extravasation blocking motor 407 is fixedly mounted on the motor mounting plate 406 in the middle of the side away from the center of the blocking groove 402 by bolts. The output shaft of the blood extravasation blocking motor 407 is installed in the middle of the motor mounting plate 406 by insertion. The first gear 408 is fixedly mounted on the output shaft of the blood extravasation blocking motor 407 by bolts. The second gear 409 is fixedly sleeved in the middle of the bidirectional threaded rod 403 by bolts. One end of the two wires 309 away from the metal conductive sheet 308 is electrically connected to the blood extravasation blocking motor 407. In the junction box of the blocking motor 407, the first gear 408 and the second gear 409 are meshed and connected; the first gear 408 is driven to rotate by the blood extravasation blocking motor 407. Since the first gear 408 is meshed and connected with the second gear 409, when the first gear 408 rotates, the second gear 409 is driven to rotate, so that the bidirectional threaded rod 403 rotates with the second gear 409. Due to the limiting effect of the blocking groove 402, when the bidirectional threaded rod 403 rotates, the two blocking sliders 404 move toward the direction of the second gear 409 at the same time. At this time, the two blocking clamping rods 405 respectively follow the two blocking sliders 404 to move toward the direction of the blood merging tube 204, and gradually clamp the blood merging tube 204, and the blood merging tube 204 is clamped by the two blocking clamping rods 405;

[0039] The blood extravasation alarm mechanism 5 includes a battery 502, a signal transmitter 503, a connecting plate 504, a blood extravasation speaker 505 and a speaker hole 506. The battery 502 is fixedly installed on one end of the blocking groove 402 close to the blood extracorporeal purification inflow tube 1 by bolts, the signal transmitter 503 is fixedly installed on one end of the blocking groove 402 close to the blood extracorporeal purification inflow tube 1 and away from the battery 502 by bolts, the connecting plate 504 is fixedly installed in the middle of the blocking groove 402 close to the blood extracorporeal purification outflow tube 205 by bolts, the blood extravasation speaker 505 is fixedly installed in the middle of the connecting plate 504 close to the blood confluence tube 204 by bolts, and the speaker hole 506 is opened at one end of the protective shell 401 close to the blood extracorporeal purification outflow tube 205; the blood extravasation alarm light 501 and the blood extravasation speaker 505 are used to sound and light alarm, and the blood extravasation information is sent through the signal transmitter 503.

[0040] Working principle: When the present invention is in use, the blood purification pipeline inlet 201 in the extracorporeal blood purification inflow tube 1 is connected to the pipeline after extracorporeal blood purification, and then the blood purification pipeline outlet 206 in the extracorporeal blood purification outflow tube 205 is connected to the pipeline for blood transfusion to the patient, that is, the normal flow direction of extracorporeal blood purification is from the blood purification pipeline inlet 201 to the blood purification pipeline outlet 206. When the blood enters the extracorporeal blood purification inflow tube 1 through the blood purification pipeline inlet 201 and flows through the pressurized inlet 202, the cross-sectional diameter of the flow is reduced, so the blood in the extracorporeal blood purification inflow tube 1 is pressurized, so that the blood flowing normally for extracorporeal blood purification will pass through the blood extravasation monitoring ball valve 303. From the pressurized inlet 202 to the extravasated blood inlet 302, when the blood extravasation monitoring ball valve 303 does not move in the valve slot, one end of the two blood shunt tubes 203 located in the blood extracorporeal purification inlet tube 1 is not connected to the pressurized inlet 202. When the blood extravasation monitoring ball valve 303 moves in the valve slot to the extravasated blood inlet 302, the pressurized inlet 202 is connected to the two blood shunt tubes 203, so that blood can flow into the blood junction tube 204 through the blood junction tube 204, and then flow into the blood extracorporeal purification outflow tube 205. When the blood is normally purified extracorporeally, the blood flows out of the blood extracorporeal purification outflow tube 205 through the blood purification pipeline outlet 206 and enters the pipeline to the patient.

[0041] When blood extravasation occurs, the pressure of the extravasated blood is greater than the transfusion pressure. At this time, the extravasated blood enters the blood extracorporeal purification outflow tube 205 through the blood purification pipeline outflow port 206, and then enters the blood confluence tube 204, and flows into the blood extracorporeal purification inflow tube 1 through the blood diversion tube 203. At this time, the blood extravasation monitoring ball valve 303 is pushed by the extravasated blood, so that the blood extravasation monitoring ball valve 303 moves in the valve slot toward the pressurized inlet 202. At this time, the blood extravasation monitoring ball valve 303 leaves the extravasated blood inlet 302, so that the blood extravasation monitoring tube 301 is connected to the valve slot. The pressurized inlet 202 is closed by the blood extravasation monitoring ball valve 303, so that the extravasated blood flows into the blood extravasation monitoring tube 301, and the blood extravasation monitoring piston 304 is pushed to move in the blood extravasation monitoring tube 301 by the extravasated blood, and the blood extravasation monitoring piston 304 pushes the blood extravasation trigger block 305 to move toward the air outlet 306. When the blood extravasation monitoring piston 304 starts to move, the blood extravasation trigger block 305 immediately enters between the connection bases 307, and conducts the two metal conductive sheets 308 through the blood extravasation trigger block 305, and at this time, the two wires 309 are conducted;

[0042] The blood extravasation blocking motor 407 is powered by the battery 502. When the two wires 309 are electrically conductive, the blood extravasation blocking motor 407 is automatically started, and the first gear 408 is driven to rotate by the blood extravasation blocking motor 407. Since the first gear 408 is meshed and connected with the second gear 409, when the first gear 408 rotates, the second gear 409 is driven to rotate, so that the bidirectional threaded rod 403 rotates with the second gear 409. Due to the limiting effect of the blocking groove 402, when the bidirectional threaded rod 403 rotates, the two blocking sliders 404 move toward the direction of the second gear 409 at the same time. At this time, the two blocking clamping rods 405 respectively follow the two blocking sliders 404 to move toward the direction of the blood merging tube 204, and gradually clamp the blood merging tube 204. The blood merging tube 204 is clamped by the two blocking clamping rods 405, so that the extravasated blood can no longer enter the blood extracorporeal purification pipeline, thereby achieving the effect of blocking the extravasated blood.

[0043] When the blood extravasation monitoring mechanism 3 detects the occurrence of blood extravasation, the blood extravasation alarm light 501, the signal transmitter 503 and the blood extravasation speaker 505 are automatically started while the two wires 309 are turned on. The blood extravasation alarm light 501 and the blood extravasation speaker 505 give sound and light alarms to remind medical staff to provide medical treatment to the patient in time. The information of blood extravasation is sent to the information receiving device of the medical staff through wireless communication via the signal transmitter 503. At the same time, the information of blood extravasation can be transmitted to the main control device of blood extracorporeal purification, thereby avoiding the problem of blood extravasation occurring during the blood extracorporeal purification process but being unable to be treated in time.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A blood extracorporeal purification circuit with a blood extravasation monitoring module, comprising a blood extracorporeal purification inflow tube (1), characterized in that: A blood purification pipeline mechanism (2), the blood purification pipeline mechanism (2) comprising a blood purification pipeline inlet (201), the blood purification pipeline inlet (201) being disposed at one end of an extracorporeal blood purification inflow tube (1), the extracorporeal blood purification inflow tube (1) being connected to the extracorporeal blood purification pipeline via the blood purification pipeline inlet (201); A blood extravasation monitoring mechanism (3), the blood extravasation monitoring mechanism (3) comprising a blood extravasation monitoring tube (301), the blood extravasation monitoring tube (301) being fixedly mounted on an end of the extracorporeal blood purification inflow tube (1) away from the blood purification pipeline inflow port (201); A blood extravasation blocking mechanism (4), the blood extravasation blocking mechanism (4) comprising a protective shell (401), the protective shell (401) being fixedly mounted on an end of the extracorporeal blood purification inflow tube (1) away from the blood purification pipeline inflow port (201); A blood extravasation alarm mechanism (5), the blood extravasation alarm mechanism (5) comprising a blood extravasation alarm light (501), the blood extravasation alarm light (501) being fixedly mounted in the middle of one end of the protective shell (401) close to the blood extracorporeal purification inflow tube (1); The blood purification pipeline mechanism (2) comprises a pressurized inlet (202), a blood shunt tube (203), a blood confluence tube (204), a blood extracorporeal purification outflow tube (205) and a blood purification pipeline outflow outlet (206); the pressurized inlet (202) is located at an end away from the blood purification pipeline inflow inlet (201); the cross-sectional diameter of the pressurized inlet (202) is smaller than the cross-sectional diameter of the blood purification pipeline inflow inlet (201); there are two blood shunt tubes (203), which are integrally formed and inserted into the extracorporeal purification blood inflow tube (1) at the upper and lower sides of the end where the pressurized inlet (202) is located; the blood confluence tube (204) ) one end close to the extracorporeal blood purification inflow tube (1) is integrally formed and sleeved on one end of the two blood shunt tubes (203) away from the extracorporeal blood purification inflow tube (1); one end of the extracorporeal blood purification outflow tube (205) close to the extracorporeal blood purification inflow tube (1) is integrally formed and fixedly installed on one end of the blood confluence tube (204) away from the extracorporeal blood purification inflow tube (1); the blood purification pipeline outflow port (206) is provided at one end of the extracorporeal blood purification outflow tube (205) away from the extracorporeal blood purification inflow tube (1); the blood purification pipeline outflow port (206) is connected to the extracorporeal blood purification pipeline through the extracorporeal blood purification outflow tube (205); The blood extravasation monitoring mechanism (3) comprises an extravasation blood inlet (302), a blood extravasation monitoring ball valve (303) and a blood extravasation monitoring piston (304); the extravasation blood inlet (302) is provided at one end of the blood extravasation monitoring tube (301) close to the pressurized inlet (202); a valve groove is provided at one end of the blood extracorporeal purification inlet tube (1) away from the blood purification pipeline inlet (201); and the valve groove is located between the pressurized inlet (202) and the extravasation blood inlet (302); the two blood shunt tubes (203) are located at the blood extracorporeal purification inlet tube (1). (1) is connected to the valve groove, the blood extravasation monitoring ball valve (303) is installed in the valve groove by sliding, the diameter of the half cross section of the blood extravasation monitoring ball valve (303) is larger than the cross section diameter of the pressurized inlet (202) and the cross section diameter of the extravasated blood inlet (302), the blood extravasation monitoring piston (304) is installed in the blood extravasation monitoring tube (301) by insertion and sliding, and the cross section diameter of the end of the blood extravasation monitoring piston (304) close to the blood extracorporeal purification inlet tube (1) is equal to the cross section diameter of the inner wall of the blood extravasation monitoring tube (301); The blood extravasation monitoring mechanism (3) comprises a blood extravasation trigger block (305), an air outlet (306) and a connecting base (307). The blood extravasation trigger block (305) is fixedly installed in the middle of one end of the blood extravasation monitoring piston (304) away from the extravasated blood inlet (302) by means of a thread. The blood extravasation trigger block (305) is cylindrical in structure and is made of a metal conductive material. The air outlet (306) is provided at one end of the blood extravasation monitoring tube (301) away from the blood extracorporeal purification inlet tube (1). In the middle, the cross-sectional diameter of the air outlet (306) is equal to the cross-sectional diameter of the blood extravasation trigger block (305), the blood extravasation trigger block (305) is inserted and slidably installed in the air outlet (306), the connecting base (307) is fixedly installed in the middle of one end of the blood extravasation monitoring tube (301) away from the blood extracorporeal purification inflow tube (1) through integral molding and is located at the air outlet (306), and the cross-sectional diameter of the inner wall of the connecting base (307) is equal to the cross-sectional diameter of the outer wall of the blood extravasation trigger block (305); The blood extravasation blocking mechanism (4) comprises a blocking groove (402), a bidirectional threaded rod (403), a blocking slider (404) and a blocking clamping rod (405); one end of the protective shell (401) away from the blood extracorporeal purification inflow tube (1) is fixedly sleeved on the outside of the blood extracorporeal purification outflow tube (205); both ends of the blocking groove (402) are fixedly mounted in the middle of the protective shell (401) at a position close to the blood confluence tube (204) by bolts; and both ends of the bidirectional threaded rod (403) are movably mounted in the blocking groove (404) by bearings. 2), there are two blocking sliders (404) and they are movably mounted on the two ends of the bidirectional threaded rod (403) by bolts, and the two blocking sliders (404) are both slidably mounted in the blocking groove (402), and there are two blocking clamping rods (405) and they are fixedly mounted in the middle of the two blocking sliders (404) close to the blood shunt tube (203) by bolts, and the two blocking clamping rods (405) are inserted and slidably mounted in the middle of the blocking groove (402) close to the blood shunt tube (203); The blood extravasation monitoring mechanism (3) comprises a metal conductive sheet (308), a wire (309), a shunt pipe fixing plate (310) and a confluence pipe fixing plate (311); a square groove is provided in the middle of the connection base (307), and the square groove divides the connection base (307) into two parts; there are two metal conductive sheets (308) and they are respectively fixedly installed in the middle of the two connection bases (307) by insertion; the two metal conductive sheets (308) are both made of metal conductive material; the blood extravasation trigger block (305) is slidably connected to the two metal conductive sheets (308); there are two wires (309) and they are respectively fixedly installed on the two metal conductive sheets (308) by welding. ) is located at one end away from the connection base (307), the shunt tube fixing plate (310) is fixedly sleeved on the outside of the blood extravasation monitoring tube (301) and close to one end of the blood extracorporeal purification inflow tube (1), the two blood shunt tubes (203) are respectively fixedly installed at the two ends of the shunt tube fixing plate (310) by insertion, the confluence tube fixing plate (311) has two groups and is evenly fixedly installed by bolts at one end of the blood extravasation monitoring tube (301) away from the blood extracorporeal purification inflow tube (1), and the end of the confluence tube fixing plate (311) away from the blood extracorporeal purification inflow tube (1) is fixedly installed at one end of the blood confluence tube (204) close to the blood extracorporeal purification inflow tube (1) by integral molding; The blood extravasation blocking mechanism (4) comprises a motor mounting plate (406), a blood extravasation blocking motor (407), a first gear (408) and a second gear (409). The motor mounting plate (406) is fixedly mounted by bolts at a position close to the middle of a side of the blocking groove (402) away from the blood shunt tube (203). The blood extravasation blocking motor (407) is fixedly mounted by bolts at a position close to the middle of a side of the motor mounting plate (406) away from the center of the blocking groove (402). The output shaft of the blood extravasation blocking motor (407) is installed in the middle of the motor mounting plate (406) by insertion. The first gear (408) is fixedly mounted on the output shaft of the blood extravasation blocking motor (407) by bolts. The second gear (409) is fixedly sleeved in the middle of the bidirectional threaded rod (403) by bolts. One end of the two wires (309) away from the metal conductive sheet (308) is electrically connected to a junction box of the blood extravasation blocking motor (407). The first gear (408) and the second gear (409) are meshingly connected.

2. The extracorporeal blood purification circuit with a blood extravasation monitoring module according to claim 1, characterized in that: The blood extravasation alarm mechanism (5) comprises a battery (502), a signal transmitter (503), a connecting plate (504), a blood extravasation speaker (505) and a speaker hole (506). The battery (502) is fixedly mounted on one end of the blocking slot (402) close to the blood extracorporeal purification inflow tube (1) by means of bolts. The signal transmitter (503) is fixedly mounted on one end of the blocking slot (402) close to the blood extracorporeal purification inflow tube (1) and away from the battery (502) by means of bolts. The connecting plate (504) is fixedly mounted on the middle of the blocking slot (402) close to the blood extracorporeal purification outflow tube (205) by means of bolts. The blood extravasation speaker (505) is fixedly mounted on the middle of the connecting plate (504) close to the blood confluence tube (204) by means of bolts. The speaker hole (506) is provided at one end of the protective shell (401) close to the blood extracorporeal purification outflow tube (205).

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