Blood purification in-vitro heating device

Abstract

The invention relates to the technical field of internal medicine treatment, in particular to a blood purification in-vitro heating device. According to the technical scheme, the device comprises a device external assembly, a blood circulation assembly is installed in the device external assembly, a torque control assembly is installed at the bottom of the blood circulation assembly, and a corresponding stirring assembly is installed in the device external assembly. The influence of external water flow which is gradually heated can be reduced through a blood flow tube placement tube in a sealed space, meanwhile, along with outward movement of a pushing ring, the pushing ring drives a flow limiting type baffle to be far away from a through hole in the surface of the water tank, and water flow in the water tank is conveyed into a protective outer frame through a water pump; and the water flow which is excessively heated in the protective outer frame is quickly restored to a normal heat preservation range, so that unexpected conditions such as blood vessel blockage caused by excessive rising of the water flow temperature are reduced, and the safety is improved.

Description

Technical Field

[0001] The invention relates to the technical field of internal medicine, and in particular to an extracorporeal heating device for blood purification. Background Art

[0002] During the blood purification process, a large amount of blood is drawn out of the body and purified through dialyzers or filters. Since the blood is in contact with the external environment during the extracorporeal blood circulation process, it is easy to cause heat loss, causing the patient's body temperature to drop. The extracorporeal warming device can heat the extracorporeal circulating blood to maintain the blood temperature close to the normal body temperature of the human body (about 37°C), thereby preventing the patient from experiencing hypothermia symptoms, such as chills, arrhythmia, etc.

[0003] If the temperature of the heating device is too high, it may cause blood coagulation. During the extracorporeal circulation of blood, the increase in temperature will accelerate the activity of coagulation factors. When the temperature exceeds a certain range, the risk of blood coagulation will increase significantly. This will not only affect the effect of blood purification, but may also cause blockage of the blood circuit, posing a threat to the patient's life safety.

[0004] In the patent document with the publication number CN221229732U, a blood purification extracorporeal warming device is disclosed. Through the setting of the guide mechanism, when the driving motor is working, the guide plate is driven to swing continuously through the driving rod, the mounting cylinder, the mounting ring and the connecting rod, so that the water in the heating box can flow as much as possible, which can make the water evenly heated and avoid the influence of uneven heating on the patient's blood delivery.

[0005] When the above device is in use, it utilizes the guide mechanism to circulate the water in the heating box, thereby quickly raising the temperature inside the device. Water is more easily affected by temperature. When it is continuously heated, it is easy to be heated to a temperature exceeding the normal temperature of the human body. If the temperature of the blood is too high, it may cause blood coagulation, which is harmful to the patient's health.

[0006] Therefore, the present application proposes a blood purification extracorporeal warming device. Summary of the invention

[0007] The purpose of the present invention is to propose a blood purification extracorporeal heating device to address the problem in the background technology that water is easily affected by temperature and, when continuously heated, it is easy to be heated to a temperature exceeding the normal temperature of the human body. The excessively high temperature of the blood may cause blood coagulation, which is detrimental to the health of the patient.

[0008] The technical solution of the present invention: a blood purification in vitro warming device comprises an external device component, a blood circulation component is installed inside the external device component, a torque control component is installed at the bottom of the blood circulation component, and a corresponding stirring component is installed inside the external device component; The device external component includes a protective outer frame, and a temperature sensor is arranged inside the protective outer frame; The blood circulation component comprises a blood flow tube placement tube fixedly installed inside the protective outer frame, the blood flow tube placement tube is located inside the protective outer frame and is slidably installed with a pushing ring, an electric telescopic rod is fixedly installed on the side of the blood flow tube placement tube away from the protective outer frame, the pushing ring passes through a side of the protective outer frame and is fixedly installed with a movable ring plate, the movable ring plate is slidably installed on the outside of the blood flow tube placement tube, a plurality of second folding rods are hinged on the outside of the movable ring plate, a fixed ring block is fixedly installed on the outside of the blood flow tube placement tube, the first folding rods with the same number as the second folding rods are hinged on the outside of the fixed ring block, and the second folding rods and the side of the first folding rod away from the fixed ring block are hinged with protective arc leaves; The torque control assembly includes a water tank fixedly installed inside the protective outer frame, a flow-limiting baffle is fixedly installed on the bottom of the pushing ring, the flow-limiting baffle is slidably installed inside the water tank, and a water pump is arranged inside the water tank.

[0009] Optionally, the external component of the equipment further includes a hydraulic lifting rod fixedly mounted on the bottom of the protective outer frame, and a universal base is fixedly mounted on the bottom of the hydraulic lifting rod.

[0010] Optionally, the corresponding stirring assembly includes a built-in fixed block fixedly installed inside the protective outer frame, the built-in fixed block is fixedly installed on the top of the water tank, and two sliding cavity positioning blocks are fixedly installed on both sides of the built-in fixed block.

[0011] Optionally, a fitting rotating rod is rotatably mounted on one side of the sliding cavity positioning block, a porous rotating rod is rotatably mounted on the outer side of the fitting rotating rod, and an inserting sliding block is rotatably mounted on the side of the porous rotating rod away from the fitting rotating rod.

[0012] Optionally, a built-in threaded slider is slidably installed on the top of the sliding cavity positioning block, two positioning stirring blades are rotatably installed on both sides of the built-in threaded slider, and a linkage plug rod is fixedly installed between the two positioning stirring blades, the linkage plug rod is rotatably installed inside the built-in threaded slider, and a slide rail block is fixedly installed on the outside of the positioning stirring blade. The interlocking slider is slidably installed in the sliding cavity of the positioning stirring blade, and a movable stirring blade is rotatably installed on one side of the positioning stirring blade through the interlocking slider, and the movable stirring blade is slidably installed on one side of the positioning stirring blade through the slide rail block, and the internal thread of the built-in threaded slider is connected to a threaded rod.

[0013] Optionally, the built-in threaded slider slides between two fitting rotating rods so that the two positioning stirring blades are arranged in a rotation center moving state, and the two fitting rotating rods are rotatably mounted on the inner wall of the protective outer frame.

[0014] Optionally, the two threaded rods are arranged in an axially symmetrical state about the vertical center line of the built-in fixed block, the threads of the two threaded rods are arranged in opposite states, a mating rotating rod is fixedly installed on one side of the threaded rod away from the sliding cavity positioning block, and an auxiliary locking tooth is fixedly installed on one side of the mating rotating rod.

[0015] Optionally, a first auxiliary rotating rod is rotatably installed on one side of the flow-limiting baffle, a second auxiliary rotating rod is fixedly installed on one side of the water tank through the first auxiliary rotating rod, two locking gear teeth are fixedly installed on the outer side of the second auxiliary rotating rod, and the two locking gear teeth are arranged in a meshing state with the auxiliary locking teeth.

[0016] In summary, the present application includes at least one of the following beneficial technical effects: 1. Placing the blood flow tube in the sealed space can reduce the impact of the gradually heated water flow outside. At the same time, as the push ring moves outward, the push ring drives the flow-limiting baffle away from the through hole on the surface of the water tank. The water flow in the water tank is transmitted to the protective outer frame through the water pump, and then the overheated water flow in the protective outer frame is quickly restored to the normal insulation range, thereby reducing the excessive increase in water flow temperature, causing blood vessel blockage and other accidents, and improving safety; 2. The positioning stirring blade uses a linkage plug rod to drive another positioning stirring blade to rotate along the built-in threaded slider, so that both sides of the built-in threaded slider guide the water flow, cooperate with the torque control component to cool the excessive water and avoid the water flow from heating up at the beginning. When the plug-in slider slides along the positioning stirring blade, the movable stirring blade slides along the positioning stirring blade, and the real-time size of the fan blade is changed, thereby changing the fluctuation of the water flow, improving the activity state of the water flow, and further improving the heating efficiency of the blood; 3. By utilizing the staggered synchronous rotation of the two sets of positioning stirring blades, the water flow below is guided to the vicinity of the blood circulation component to better cool down the overheated water flow. When the flow-limiting baffle blocks the transmission hole of the water tank, the flow-limiting baffle drives the first auxiliary rotating rod and the positioning gear pair to rotate the matching rotating rod in the opposite direction, and the built-in threaded slider is moved back to its original position, reducing the friction on the positioning stirring blades, and the waterproof forward and reverse motor stops moving, thereby better controlling the heating and cooling of the water flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic structural diagram of the blood purification extracorporeal warming device of the present invention is given; Figure 2 A schematic structural diagram of the protective outer frame of the present invention is given; Figure 3 for Figure 2 Enlarged view of the middle A area; Figure 4 for Figure 2 Enlarged view of the middle B area; Figure 5 A schematic structural diagram of the positioning stirring blade of the present invention is given; Figure 6 A schematic structural diagram of a blood flow tube placement tube of the present invention is provided; Figure 7 for Figure 6 Enlarged view of the middle C area; Figure 8 It is a structural schematic diagram of the movable ring plate.

[0018] Reference numerals: 1. Equipment external component; 101. Protective outer frame; 102. Hydraulic lifting rod; 103. Universal base; 2. Blood circulation component; 201. Blood flow tube placement tube; 202. Protective arc leaf; 203. Pushing ring; 204. Flow limiting baffle; 205. Movable ring plate; 206. Fixed ring block; 207. First folding rod; 208. Second folding rod; 3. Corresponding stirring component; 301. Built-in fixed block; 302. 02, slide cavity positioning block; 303, threaded rod; 304, built-in threaded slider; 305, matching rotating rod; 306, positioning stirring blade; 307, slide rail block; 308, movable stirring blade; 309, matching rotating rod; 310, porous rotating rod; 311, plug-in slider; 312, auxiliary latching teeth; 4, torque control component; 401, water tank; 402, first auxiliary rotating rod; 403, second auxiliary rotating rod; 404, latching gear. DETAILED DESCRIPTION

[0019] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0020] like Figure 1-Figure 8 As shown, the blood purification extracorporeal warming device proposed by the present invention comprises an external device component 1, a blood circulation component 2 is installed inside the external device component 1, a torque control component 4 is installed at the bottom of the blood circulation component 2, and a corresponding stirring component 3 is installed inside the external device component 1; The device external component 1 includes a protective outer frame 101, and a temperature sensor is arranged inside the protective outer frame 101. The temperature sensor is installed on the surface of the blood flow tube placement tube 201, and is used to monitor the temperature of the blood transmission tube in the blood flow tube placement tube 201 in real time during transmission. The device external component 1 also includes a hydraulic lifting rod 102 fixedly installed at the bottom of the protective outer frame 101, and a universal base 103 is fixedly installed at the bottom of the hydraulic lifting rod 102, which is used to transport the device to a specified position; The blood circulation component 2 includes a blood flow tube placement tube 201 fixedly installed inside the protective outer frame 101, the blood flow tube placement tube 201 is located inside the protective outer frame 101 and is slidably installed with a pushing ring 203, an electric telescopic rod is fixedly installed on the side of the blood flow tube placement tube 201 away from the protective outer frame 101, the pushing ring 203 passes through the side of the protective outer frame 101 and is fixedly installed with a movable ring plate 205, the movable ring plate 205 is slidably installed on the outside of the blood flow tube placement tube 201, and a plurality of second folding rods 208 are hinged on the outside of the movable ring plate 205, a fixed ring block 206 is fixedly installed on the outside of the blood flow tube placement tube 201, and the first folding rods 207 with the same number as the second folding rods 208 are hinged on the outside of the fixed ring block 206, and the second folding rods 208 and the side of the first folding rod 207 away from the fixed ring block 206 are hinged with protective arc leaves 202; The torque control component 4 includes a water tank 401 fixedly installed inside the protective outer frame 101, a flow-limiting baffle 204 is fixedly installed at the bottom of the pushing ring 203, and the flow-limiting baffle 204 is slidably installed inside the water tank 401. A water pump is arranged inside the water tank 401. When the blood transmission tube passes into the blood flow tube placement tube 201, the blood flow tube placement tube 201 can be filled with insulation to locate the position of the blood transmission tube and to keep it warm. The initial state of the multiple protective arc leaves 202 is an outwardly opened state, and there is a gap between every two protective arc leaves 202. The water flow in the protective outer frame 101 is in direct contact with the blood transmission tube to keep it warm. If the temperature sensor senses that the water temperature begins to rise, it controls the pushing rings 203 on both sides of the blood flow tube placement tube 201 to move away from the blood flow tube placement tube 201 through the electric telescopic rod, and the pushing ring 203 drives the second folding rod 208 to pull outward in the same direction through the movable ring plate 205. At this time, the second folding rod 208 is pulled outward in the same direction. The stacking rod 208 drives the protective arc leaf 202 to move toward the side of the blood flow tube placement tube 201 under the limitation of the fixed ring block 206 and the first folding rod 207. At this time, multiple protective arc leaves 202 form a circular ring to protect the blood flow tube placement tube 201, and the circular ring and the side wall of the protective outer frame 101 form a sealed state, and the external water flow cannot enter the wrapped area of ​​the blood flow tube placement tube 201. The material of the protective arc leaf 202 is a material with poor thermal conductivity. The blood flow tube placement tube 201 in the sealed space can reduce the influence of the gradually heated water flow from the outside. At the same time, as the pushing ring 203 moves outward, the pushing ring 203 drives the flow limiting baffle 204 away from the through hole on the surface of the water tank 401, and the water flow in the water tank 401 is transmitted to the protective outer frame 101 through the water pump, and then quickly causes the overheated water flow in the protective outer frame 101 to return to the normal insulation range, thereby reducing the excessive increase in water flow temperature, causing blood vessel blockage and other accidents, thereby improving safety.

[0021] like Figure 1-Figure 5As shown, the corresponding stirring assembly 3 includes a built-in fixed block 301 fixedly installed inside the protective outer frame 101, the built-in fixed block 301 is fixedly installed on the top of the water tank 401, and two sliding cavity positioning blocks 302 are fixedly installed on both sides of the built-in fixed block 301. A fitting rotating rod 309 is rotatably installed on one side of the sliding cavity positioning block 302, and a porous rotating rod 310 is rotatably installed on the outer side of the fitting rotating rod 309. An inserting slider 311 is rotatably installed on the side of the porous rotating rod 310 away from the fitting rotating rod 309, and a built-in threaded slider 304 is slidably installed on the top of the sliding cavity positioning block 302. Two positioning stirring blades 306 are rotatably installed on both sides, and a linkage plug rod is fixedly installed between the two positioning stirring blades 306, and the linkage plug rod is rotatably installed inside the built-in threaded slider 304. A slide block 307 is fixedly installed on the outside of the positioning stirring blade 306. The insertion slider 311 is slidably installed in the sliding cavity of the positioning stirring blade 306. The insertion slider 311 passes through one side of the positioning stirring blade 306 and is rotatably installed with a movable stirring blade 308. The movable stirring blade 308 is slidably installed on one side of the positioning stirring blade 306 through the slide block 307. The internal thread of the built-in threaded slider 304 is connected with a threaded rod 303, and the inner The threaded slider 304 slides between the two fitting rods 309, causing the two positioning stirring blades 306 to be arranged in a rotating center moving state. The two fitting rods 309 are rotatably installed on the inner wall of the protective outer frame 101. One of the fitting rods 309 is fixedly installed with a waterproof motor, that is, the fitting rod 309 located above the slide cavity positioning block 302. The waterproof motor drives one fitting rod 309 to rotate. The fitting rod 309 drives the plug-in slider 311 to rotate through the porous rotating rod 310. When the plug-in slider 311 slides along the positioning stirring blade 306, it guides the positioning stirring blade 306. The force causes the positioned stirring blade 306 on the same side to rotate, and the positioned stirring blade 306 uses the linkage plug rod to drive the other positioned stirring blade 306 to rotate along the built-in threaded slider 304, so that both sides of the built-in threaded slider 304 guide the water flow, and cooperate with the torque control component 4 to cool the excessive water and avoid the initial heating of the water flow. When the plug-in slider 311 slides along the positioned stirring blade 306, the movable stirring blade 308 slides along the positioned stirring blade 306, and the real-time size of the fan blade is changed, thereby changing the fluctuation of the water flow, thereby improving the activity state of the water flow, thereby further improving the heating efficiency of the blood.

[0022] like Figure 2-Figure 6As shown, the threaded rod 303 is arranged in an axially symmetrical state about the vertical center line of the built-in fixed block 301, and the threads of the two threaded rods 303 are arranged in opposite states. A matching rotating rod 305 is fixedly installed on the side of the threaded rod 303 away from the sliding cavity positioning block 302, and an auxiliary latching tooth 312 is fixedly installed on one side of the matching rotating rod 305. A first auxiliary rotating rod 402 is rotatably installed on one side of the flow-limiting baffle 204, and a second auxiliary rotating rod 403 is fixedly installed on the side where the first auxiliary rotating rod 402 passes through the water tank 401, and two latching wheels are fixedly installed on the outer side of the second auxiliary rotating rod 403. The first auxiliary rotating rod 405 is provided with a plurality of gears 406, 407 and 408. The gears 406 are provided with a plurality of gears 407, 408 and 409. The gears 406 are provided with a plurality of gears 408, 409 and 409. The gears 406 are provided with a plurality of gears 407, 407 and 408. The gears 406 are provided with a plurality of gears 407, 408 ... When the inner threaded slider 304 rotates along the threaded track of the threaded rod 303 toward the side of the slide cavity positioning block 302 close to the inner fixed block 301, the rotation centers of the two sets of positioning stirring blades 306 are offset, that is, the friction between the plug-in slider 311 located above the slide cavity positioning block 302 and the slide groove of the positioning stirring blade 306 is greater, so that the rotation of the positioning stirring blade 306 connected thereto is limited by the friction force, and its rotation is more stable. Then, the other positioning stirring blade 306 rotates synchronously and stably, and can better resist the impact of water flow in the water tank 401. The flow of water is controlled by the staggered synchronous rotation of the two sets of positioning stirring blades 306, and the water flow below is guided to the vicinity of the blood circulation component 2, so as to better cool down the overheated water flow. When the flow-limiting baffle 204 blocks the transmission hole of the water tank 401, the flow-limiting baffle 204 drives the first auxiliary rotating rod 402 and the positioning gear 404 to rotate the matching rotating rod 305 in the opposite direction, and then the built-in threaded slider 304 is moved back to the original position, reducing the friction of the positioning stirring blade 306, and the waterproof forward and reverse motor stops moving, so as to better control the heating and cooling of the water flow. When the water tank 401 and the protective outer frame 101 are sealed, a cooling component is installed in the water tank 401 to reduce the cooling water to a reasonable temperature for repeated use.

[0023] 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 actual relationship or order between these entities or operations. "Comprising" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or also includes elements inherent to such process, method, article, or apparatus.

[0024] The above specific embodiments are only several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A blood purification and extracorporeal warming device, comprising an external device component (1), characterized in that: A blood circulation component (2) is installed inside the external component (1) of the device, a torque control component (4) is installed at the bottom of the blood circulation component (2), and a corresponding stirring component (3) is installed inside the external component (1) of the device; The device external component (1) comprises a protective outer frame (101), wherein a temperature sensor is arranged inside the protective outer frame (101); The blood circulation component (2) comprises a blood flow tube placement tube (201) fixedly mounted inside the protective outer frame (101); the blood flow tube placement tube (201) is located inside the protective outer frame (101) and is slidably mounted with a pushing ring (203); an electric telescopic rod is fixedly mounted on a side of the blood flow tube placement tube (201) away from the protective outer frame (101); a movable ring plate (205) is fixedly mounted on a side of the pushing ring (203) that passes through the protective outer frame (101); the movable ring plate (205) is slidably mounted on the side of the blood flow tube placement tube (201) away from the protective outer frame (101); Installed on the outside of the blood flow tube placement tube (201), the outside of the movable ring plate (205) is hinged with a plurality of second folding rods (208), the outside of the blood flow tube placement tube (201) is fixedly installed with a fixed ring block (206), the outside of the fixed ring block (206) is hinged with first folding rods (207) whose number is the same as the second folding rods (208), and the second folding rods (208) and the first folding rods (207) are hinged with a protective arc leaf (202) on the side away from the fixed ring block (206); The torque control assembly (4) comprises a water tank (401) fixedly mounted inside the protective outer frame (101); a flow-limiting baffle (204) is fixedly mounted on the bottom of the pushing ring (203); the flow-limiting baffle (204) is slidably mounted inside the water tank (401); and a water pump is arranged inside the water tank (401).

2. The blood purification extracorporeal warming device according to claim 1, characterized in that: The equipment external component (1) further comprises a hydraulic lifting rod (102) fixedly mounted on the bottom of the protective outer frame (101), and a universal base (103) is fixedly mounted on the bottom of the hydraulic lifting rod (102).

3. The blood purification extracorporeal warming device according to claim 2, characterized in that: The corresponding stirring assembly (3) comprises a built-in fixing block (301) fixedly mounted inside the protective outer frame (101), the built-in fixing block (301) fixedly mounted on the top of the water tank (401), and two sliding cavity positioning blocks (302) fixedly mounted on both sides of the built-in fixing block (301).

4. The blood purification extracorporeal warming device according to claim 3, characterized in that: A mating rotating rod (309) is rotatably mounted on one side of the sliding cavity positioning block (302), a porous rotating rod (310) is rotatably mounted on the outer side of the mating rotating rod (309), and an inserting sliding block (311) is rotatably mounted on the side of the porous rotating rod (310) away from the mating rotating rod (309).

5. The blood purification extracorporeal warming device according to claim 4, characterized in that: A built-in threaded slider (304) is slidably mounted on the top of the sliding cavity positioning block (302); two positioning stirring blades (306) are rotatably mounted on both sides of the built-in threaded slider (304); a linkage plug rod is fixedly mounted between the two positioning stirring blades (306); the linkage plug rod is rotatably mounted inside the built-in threaded slider (304); a slide block (307) is fixedly mounted on the outside of the positioning stirring blade (306); the insertion slider (311) is slidably mounted in the sliding cavity of the positioning stirring blade (306); a movable stirring blade (308) is rotatably mounted on one side of the positioning stirring blade (306); and the movable stirring blade (308) is slidably mounted on one side of the positioning stirring blade (306) through the slide block (307); and the internal thread of the built-in threaded slider (304) is connected to a threaded rod (303).

6. The blood purification extracorporeal warming device according to claim 5, characterized in that: The built-in threaded slider (304) slides between the two fitting rotating rods (309), causing the two positioning stirring blades (306) to be arranged in a rotation center moving state. The two fitting rotating rods (309) are rotatably mounted on the inner wall of the protective outer frame (101).

7. The blood purification extracorporeal warming device according to claim 6, characterized in that: The two threaded rods (303) are arranged in an axially symmetrical state with respect to the vertical center line of the built-in fixed block (301), and the threads of the two threaded rods (303) are arranged in opposite states. A mating rotating rod (305) is fixedly installed on one side of the threaded rod (303) away from the sliding cavity positioning block (302), and an auxiliary latching tooth (312) is fixedly installed on one side of the mating rotating rod (305).

8. The blood purification extracorporeal warming device according to claim 7, characterized in that: A first auxiliary rotating rod (402) is rotatably mounted on one side of the flow-limiting baffle (204); a second auxiliary rotating rod (403) is fixedly mounted on one side of the first auxiliary rotating rod (402) passing through the water tank (401); two locking gear teeth (404) are fixedly mounted on the outer side of the second auxiliary rotating rod (403); and the two locking gear teeth (404) are arranged in a meshing state with the auxiliary locking teeth (312).

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