Transfusion flow regulator

Abstract

The invention relates to the technical field of infusion equipment, in particular to an infusion flow regulator which comprises a drainage tube and a regulator body arranged on the drainage tube, a regulating assembly is arranged in an inner cavity of the regulator body, a buffering assembly is arranged on the lower surface of the regulator body, and the drainage tube penetrates through the regulator body. The flow speed of the drainage tube can be stably adjusted through the adjusting assembly, automatic interruption can be achieved when liquid medicine delivery is about to be finished, preparation time is provided for medical staff for follow-up treatment, meanwhile, an alarm is given out to remind a patient and the medical staff that the liquid medicine needs to be replaced or a remaining needle needs to be pulled out, and operation is convenient. By adopting the buffer assembly, the drainage tube can be limited, the redundant drainage tube is flexibly fixed, a buffer effect is achieved when an infusion patient accidentally moves limb parts such as arms, the drainage tube of the flexible fixing part is buffered and floated, the drainage tube is prevented from falling off from an infusion support or a fixing clamp, and the infusion support is convenient to use. And the remaining needle is prevented from falling off from the arm of the patient.

Description

Technical Field

[0001] The present invention relates to the technical field of infusion equipment, and in particular discloses an infusion flow regulator. Background Art

[0002] The infusion flow regulator is a key device used to accurately control the liquid infusion rate in medical infusion systems. It is usually installed on the infusion pipeline and mostly adjusts the flow area of ​​the pipeline mechanically, thereby changing the amount of liquid medicine flowing into the patient's body per unit time. Its core function is to ensure the safety and effectiveness of treatment: it can avoid risks such as excessive cardiac load and drug toxicity caused by excessive flow rate, and it can also prevent insufficient drug efficacy or prolonged treatment time due to excessive flow rate. In clinical infusion treatment, precise control of the infusion flow rate is crucial.

[0003] The existing technology still has the following problems: 1. Most traditional infusion flow regulators use a roller to squeeze the infusion drainage tube to adjust the flow rate by changing the size of the drainage tube lumen. However, the roller is easily over-adjusted under the action of external force, which results in the need to repeatedly move the roller and wastes time. In addition, the roller squeezing method cannot prompt after the drug delivery is completed, making it difficult for patients to detect the completion of drug delivery in time when they are resting. As a result, the liquid in the drainage tube is exhausted, and the blood flows back due to the negative pressure in the pipeline, which leads to blood backflow. At the same time, air may enter the vein through the empty tube and reach the heart with the blood flow, causing serious consequences such as air embolism.

[0004] 2. Existing infusion flow regulators cannot buffer the drainage tube. When receiving an infusion, the infusion recipient will inevitably move their arms and other limbs inadvertently, dragging the drainage tube during the movement of their hands, which may cause the drainage tube to fall off the infusion stand, the fixing clamp or the patient's arm. In severe cases, the pulling force generated may cause the bevel of the needle fixed in the vein to deviate or partially fall out, requiring re-injection and posing certain medical risks to the patient. Summary of the Invention

[0005] In view of the above deficiencies in the prior art, the present invention provides an infusion flow regulator to solve the problem that the infusion flow regulator in the prior art uses a roller extrusion method and cannot prompt after the drug solution is delivered, and cannot buffer the drainage tube when it is dragged.

[0006] The technical solution adopted by the present invention to solve its technical problem is: The infusion flow regulator comprises a drainage tube and a regulator body disposed on the drainage tube, an inner cavity of the regulator body is provided with a regulating component, a lower surface of the regulator body is provided with a buffer component, and the drainage tube passes through the regulator body; The adjustment assembly includes an adjustment mechanism, which is provided in two groups, and the two groups of adjustment mechanisms are respectively provided on both sides of the inner cavity of the regulator body, a connecting rod is provided between the tops of the two groups of adjustment mechanisms, an alarm mechanism is provided between the bottoms of the two groups of adjustment mechanisms, and a pressing mechanism is provided on one side of the inner cavity of the regulator body close to one of the groups of adjustment mechanisms; The adjusting mechanism includes a fixed block fixedly arranged on the top of the inner wall of the main body, the fixed block is a rectangular plate-shaped structure as a whole, a first threaded rod is rotatably provided on the side wall of the fixed block, a storage rod is fixedly provided at the four corners of the lower surface of the fixed block, a lifting rod is slidably provided in the inner cavity of the storage rod, the bottom end of the lifting rod passes through the bottom end of the storage rod and is fixedly provided with a lifting block, and driving blocks are fixedly provided on both sides of the upper surface of the lifting block, and a driving groove is inclined and penetrated on the driving block. The lifting block is fixed with a limit rod, and the middle part of the lower surface of the lifting block is fixed with a limit rod. The inner cavity of the limit rod is slidably provided with an elastic rod, and the bottom end of the elastic rod passes through the bottom end of the limit rod and is fixed with a clamping ring. The upper part of the inner cavity of the limit rod is provided with a first spring, and the top end of the elastic rod is fixed with an inclined plane block, and the inclined planes of the two sets of inclined plane blocks are arranged opposite to each other.

[0007] Furthermore, one end of the first threaded rod extends to the inner cavity of the fixed block and is threadedly connected to the first slider, the first spring is fixedly connected between the lifting block and the elastic rod, the inclined block and the limit rod are slidably connected, the lower surface of the clamping ring is in contact with the drainage tube, one group of the first threaded rods is arranged on the side of the fixed block close to the clamping mechanism, and the other group of the first threaded rods is arranged on the side of the fixed block away from the clamping mechanism, the connecting rod is fixedly connected to the two groups of first threaded rods, and the connecting rod and the fixed block are rotatably connected.

[0008] Furthermore, the alarm mechanism includes a first connecting strip fixedly arranged on the upper surface of the inclined plane block away from the clamping mechanism, a fixing strip fixedly arranged on the lower surface of the first connecting strip close to the clamping mechanism, a first sliding rod passing through the bottom of the fixing strip and slidingly arranged, an end of the first sliding rod away from the fixing strip contacts the inclined plane of the inclined plane block close to the clamping mechanism, a first adjusting bolt passing through the end of the first connecting strip close to the clamping mechanism and threadedly arranged, a second connecting strip fixedly arranged on the upper surface of the inclined plane block close to the clamping mechanism, a limiting strip fixedly arranged on the lower surface of the second connecting strip close to the first connecting strip, the The first sliding bar passes through and is slidably arranged at the bottom of the limit bar, and the first sliding bar and the limit bar are slidably connected in the horizontal and vertical directions. The second connecting bar is fixedly provided with a first button on the lower surface near one end of the first connecting bar, and the first alarm is fixedly provided on the upper surface of the second connecting bar near one end of the first connecting bar. The first button is cooperatively arranged above the first adjusting bolt, the first button and the first alarm are electrically connected, and pressing the first button can control the first alarm to sound an alarm. A connecting plate is fixedly provided in the middle of the first sliding bar, and a second sliding bar is fixedly provided on the upper surface of the connecting plate away from one end of the first sliding bar.

[0009] Furthermore, the clamping mechanism includes an elastic frame fixedly arranged on the inner wall of the regulator body, an extrusion rod is slidably arranged in the inner cavity of the elastic frame, the bottom end of the extrusion rod passes through the bottom end of the elastic frame and is fixedly provided with an extrusion plate, the upper part of the extrusion rod is fixedly provided with a connecting ring, one end of the connecting ring passes through the side wall of the elastic frame, a fixing ring is fixedly provided on one side of the elastic frame in conjunction with the connecting ring, a plug is inserted into the inner cavity of the fixing ring, and the plug and the fixing ring are slidably connected, and a second spring is sleeved on the top of the outer surface of the extrusion rod.

[0010] Furthermore, the second spring is fixedly connected between the inner wall of the elastic frame and the connecting ring, the connecting ring and the elastic frame are slidably connected, the plug and the connecting ring are inserted, and the plug and the connecting ring are slidably connected, the lower surface of the extrusion plate is in contact with the drainage tube, the plug and the second sliding rod are inserted, and the second sliding rod and the plug are slidably connected.

[0011] Furthermore, the buffer assembly includes a slide plate slidably arranged on the lower surface of the regulator body, and both ends of the slide plate are threaded with a second adjusting bolt, and both ends of the slide plate are fixedly provided with a number of third sliding rods, the third sliding rods pass through and are slidably connected to the regulator body, the outer surface of the third sliding rod is sleeved with a third spring, and the third spring is fixedly connected between the slide plate and the inner wall of the regulator body, and two groups of second buttons are fixedly provided on both sides of the bottom inner wall of the regulator body respectively cooperate with two groups of second adjusting bolts, and a second alarm is fixedly provided on both sides of the lower surface of the regulator body, the second button and the second alarm are electrically connected, and pressing the second button can control the second alarm to sound an alarm, a floating mechanism is provided on the lower surface of the slide, and a buffer mechanism is provided on the lower surface of the floating mechanism, and blocks are fixedly provided on both ends of the buffer mechanism.

[0012] Furthermore, the floating mechanism includes a limiting ring fixedly arranged in the middle of the lower surface of the slide, the outer surface of the limiting ring is provided with a plurality of sliding grooves evenly and spaced apart along the circumference, a fourth sliding rod is slidingly arranged in several of the sliding grooves, a floating plate is fixedly arranged on the opposite sides of several of the fourth sliding rods, the outer surface of the fourth sliding rod is sleeved with a fourth spring, and the middle sliding sleeve of the outer surface of the fourth sliding rod is provided with a gasket.

[0013] Furthermore, the gasket and the inner wall of the limiting ring are slidably connected, the fourth spring is fixedly connected between the gasket and the floating plate, and the floating plate does not contact the lower surface of the slide plate.

[0014] Furthermore, the buffer mechanism includes a buffer rack fixedly arranged on the lower surface of the floating plate, second sliders are slidably arranged on both sides of the inner cavity of the buffer rack, buffer rods are fixedly arranged on the opposite sides of the two groups of the second sliders, a fifth spring is sleeved on the outer surface of the buffer rod, a second threaded rod is rotatably arranged on the outer wall of the buffer rack, and distance adjustment blocks are threadedly arranged on both ends of the second threaded rod, third alarms are fixedly arranged on the opposite sides of the two groups of the distance adjustment blocks, and third buttons are fixedly arranged on the opposite sides of the two groups of the distance adjustment blocks.

[0015] Furthermore, the buffer rod and the buffer frame are slidably connected, the fifth spring is fixedly connected between the second slider and the inner wall of the buffer frame, the thread directions at both ends of the second threaded rod are opposite, the third alarm and the third button are electrically connected, and pressing the third button can control the third alarm to sound an alarm, the second slider passes through the side wall of the buffer frame at one end close to the second threaded rod, and the second slider is cooperated with the third button at one end close to the second threaded rod. The opposite sides of the two groups of buffer rods respectively pass through the side walls of the buffer frame and are fixedly connected to the two groups of blocks. A groove is opened through the bottom of the block, and the groove is a semi-cylindrical structure as a whole, and a convex strip is fixedly provided on the inner wall of the groove. The diameter of the groove is adapted to the diameter of the drainage tube.

[0016] The beneficial effects of the present invention are: 1. The present invention adopts an adjustment component to effectively solve the problem that the traditional infusion flow regulator uses a roller to squeeze the infusion drainage tube, which is prone to over-adjustment under the action of external force and cannot provide a prompt after the drug delivery is completed. By setting the adjustment component, the flow rate of the drainage tube can be stably adjusted, and it can be automatically interrupted when the drug delivery is about to be completed, providing preparation time for medical staff to carry out subsequent treatment. At the same time, an alarm is issued to remind patients and medical staff that they need to change the drug or remove the indwelling needle, thereby preventing air in the drainage tube from entering the patient's blood vessels and preventing the patient from bleeding back.

[0017] 2. The present invention effectively solves the problem that the existing infusion flow regulator cannot buffer the drainage tube when it is dragged by adopting a buffer component. By setting the buffer component, the drainage tube can be limited and the excess drainage tube can be flexibly fixed. When the infusion recipient inadvertently moves his arms or other limbs, it has a buffering effect, so that the drainage tube in the flexible fixed part is buffered and floats, thereby preventing the drainage tube from falling off the infusion stand or the fixing clamp, and preventing the indwelling needle from falling off the patient's arm, thereby improving the protection effect on the patient during infusion. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a partial structural schematic diagram of the present invention; Figure 2 It is a schematic cross-sectional view of part of the structure of the present invention; Figure 3 It is a structural schematic diagram of the regulating assembly of the present invention; Figure 4 It is a structural schematic diagram of the adjustment mechanism of the present invention; Figure 5 It is a structural schematic diagram of the elastic rod, clamp ring, inclined plane block and alarm mechanism of the present invention; Figure 6 for Figure 5 Schematic diagram of the enlarged structure at A in the middle; Figure 7 It is a structural schematic diagram of the connecting plate, the second sliding rod and the pressing mechanism of the present invention; Figure 8 It is a structural diagram of the regulator body, the slide plate, the second regulating bolt, the third slide bar, the third spring, the second button and the second alarm of the present invention; Figure 9 It is a partial structural diagram of the regulator body and buffer assembly of the present invention; Figure 10 It is a structural schematic diagram of the floating mechanism of the present invention; Figure 11It is a structural schematic diagram of the floating mechanism and the buffer mechanism of the present invention.

[0019] In the figure: 1. Regulator body; 2. Adjustment assembly; 21. Adjustment mechanism; 211. Fixed block; 212. First threaded rod; 213. Storage rod; 214. Lifting rod; 215. Lifting block; 216. Driving slot; 217. First slider; 218. Driving rod; 219. Limiting rod; 2110. Elastic rod; 2111. Clamping ring; 2112. First spring; 2113. Inclined block; 22. Connecting rod; 23. Alarm mechanism; 231. First connecting bar; 232. Fixed bar; 233. First slide bar; 234. First adjusting bolt; 235. Second connecting bar; 236. Limiting bar; 237. First button; 238. First alarm; 239. Connecting plate; 2310. Second slide bar; 24. Pressing mechanism; 241 , elastic frame; 242, extrusion rod; 243, extrusion plate; 244, connecting ring; 245, fixing ring; 246, plug; 247, second spring; 3, buffer assembly; 31, slide plate; 32, second adjusting bolt; 33, third slide bar; 34, third spring; 35, second button; 36, second alarm; 37, floating mechanism; 371, limiting ring; 372, slide groove; 373, floating plate; 374, fourth slide bar; 375, fourth spring; 376, gasket; 38, buffer mechanism; 381, buffer frame; 382, ​​second slider; 383, buffer rod; 384, fifth spring; 385, second threaded rod; 386, distance adjustment block; 387, third alarm; 388, third button; 39, block; 4, drainage tube. DETAILED DESCRIPTION

[0020] The present invention will be described and explained in detail below with reference to the accompanying drawings.

[0021] Example 1 like Figure 1 As shown, the infusion flow regulator includes a drainage tube 4 and a regulator body 1 arranged on the drainage tube 4. The inner cavity of the regulator body 1 is provided with a regulating component 2, and the lower surface of the regulator body 1 is provided with a buffer component 3. The drainage tube 4 passes through the regulator body 1; The regulator body 1 and the drainage tube 4 are integrally kept in sliding connection, and need to be moved under the action of external force, and under normal shaking or shaking, the regulator body 1 and the drainage tube 4 are kept relatively static due to the large friction force therebetween; the drainage tube 4 is part of the pipeline during infusion, one end of which is connected with a drop bottle, and the other end is connected with a retention needle, the flow rate of the liquid in the drainage tube 4 is controlled by the adjusting assembly 2 to generate extrusion on the drainage tube 4, so as to facilitate adjustment according to actual needs, and the drainage tube 4 can be automatically pressed tightly when the liquid in the drainage tube 4 is quickly delivered, the tube wall of the drainage tube 4 is pressed by external force to close the drainage tube 4, so as to prevent negative pressure from being formed in the drainage tube 4 to cause infusion interruption, and prevent back bleeding and other phenomena; the buffer assembly 3 can limit the drainage tube 4, and has a buffering effect when used by the patient, and when the drainage tube 4 is dragged by the acting force, the buffer assembly 3 can timely send an alarm to remind the patient to pay attention, and avoid the retention needle from falling off from the patient.

[0022] As shown in Figure 2-3 The adjusting assembly 2 comprises two adjusting mechanisms 21, and the two adjusting mechanisms 21 are arranged on both sides of the inner cavity of the regulator body 1, a connecting rod 22 is arranged between the top portions of the two adjusting mechanisms 21, an alarm mechanism 23 is arranged between the bottom portions of the two adjusting mechanisms 21, and a pressing mechanism 24 is arranged on the side of the inner cavity of the regulator body 1 close to one of the adjusting mechanisms 21. The flow rate is adjusted by adjusting the size of the interstice of the drainage tube 4 by adjusting the adjusting mechanism 21; the connecting rod 22 is used to connect the two adjusting mechanisms 21, so that the two adjusting mechanisms 21 extrude the drainage tube 4 on both sides of the inner cavity of the regulator body 1 respectively, to ensure the stability of the flow rate of the drainage tube 4; when the infusion is almost completed, the liquid in the drainage tube 4 at one end is exhausted, so that the two adjusting mechanisms 21 have a certain position difference, at this time, the alarm mechanism 23 sends an alarm, and drives the pressing mechanism 24 to generate a large extrusion force on the drainage tube 4, so as to form a completely closed cross section in the drainage tube 4, to avoid air entering the blood vessels of the infusion person, and to prevent back bleeding.

[0023] As shown in Figure 2-4As shown, the adjustment mechanism 21 includes a fixed block 211 fixedly arranged on the top of the inner wall of the main body 1. The fixed block 211 is a rectangular plate-shaped structure as a whole. A first threaded rod 212 is rotatably provided on the side wall of the fixed block 211. The four corners of the lower surface of the fixed block 211 are fixedly provided with a storage rod 213. The inner cavity of the storage rod 213 is slidably provided with a lifting rod 214. The bottom end of the lifting rod 214 passes through the bottom end of the storage rod 213 and is fixedly provided with a lifting block 215. Both sides of the upper surface of the lifting block 215 are fixedly provided with driving blocks. The driving block is inclined and penetrated with a driving slot 216. Both sides of the lower surface of the fixed block 211 are slidably provided. A first slider 217 is provided, and two groups of driving rods 218 are fixedly provided on the opposite sides of the two groups of the first sliders 217 to cooperate with the two groups of driving grooves 216 respectively. The driving rods 218 are slidably connected in the driving grooves 216. A limiting rod 219 is fixedly provided in the middle of the lower surface of the lifting block 215. An elastic rod 2110 is slidably provided in the inner cavity of the limiting rod 219. The bottom end of the elastic rod 2110 passes through the bottom end of the limiting rod 219 and is fixedly provided with a clamping ring 2111. A first spring 2112 is provided on the upper part of the inner cavity of the limiting rod 219. A slope block 2113 is fixedly provided on the top of the elastic rod 2110, and the slopes of the two groups of slope blocks 2113 are arranged opposite to each other.

[0024] One end of the first threaded rod 212 extends to the inner cavity of the fixed block 211 and is threadedly connected to the first slider 217. The first spring 2112 is fixedly connected between the lifting block 215 and the elastic rod 2110. The inclined block 2113 and the limit rod 219 are slidably connected. The lower surface of the clamping ring 2111 fits the drainage tube 4. One group of the first threaded rods 212 is arranged on the side of the fixed block 211 close to the clamping mechanism 24, and the other group of the first threaded rods 212 is arranged on the side of the fixed block 211 away from the clamping mechanism 24. The connecting rod 22 is fixedly connected to the two groups of first threaded rods 212, and the connecting rod 22 is rotatably connected to the fixed block 211.

[0025] When the flow rate of the drainage tube 4 needs to be adjusted, the first slider 217 is driven to move by rotating the first threaded rod 212. The movement of the first slider 217 drives the driving rod 218 to move in the driving groove 216, thereby squeezing the driving block to move. At this time, the lifting rod 214 moves in the receiving rod 213, thereby driving the distance between the lifting block 215 and the fixed block 211 to change. The movement of the lifting block 215 drives the limiting rod 219 to move. The movement of the limiting rod 219 drives the first spring 2112 to squeeze the elastic rod 2110, so that the clamping ring 2111 squeezes the drainage tube 4. Thereby, the cavity of the drainage tube 4 is changed, and the flow rate is adjusted; the connecting rod 22 can make the two first threaded rods 212 rotate at the same time, so that the two clamping rings 2111 simultaneously generate the same force on the drainage tube 4, so that the flow rate of the drainage tube 4 after adjustment remains stable, avoiding the need to use a roller adjustment method that requires repeated movement and wastes time, and the problem of the roller easily sliding in the regulator body 1 resulting in poor stability; by setting two clamping rings 2111 to squeeze the drainage tube 4 at the same time, the stability of the flow rate adjustment of the drainage tube 4 is improved, and high efficiency is guaranteed.

[0026] like Figure 3 and Figure 5-7As shown, the alarm mechanism 23 includes a first connecting strip 231 fixedly arranged on the upper surface of the inclined block 2113 away from the pressing mechanism 24, the first connecting strip 231 is fixedly provided with a fixing strip 232 on the lower surface close to the pressing mechanism 24, the bottom of the fixing strip 232 passes through and is slidably provided with a first slide bar 233, the end of the first slide bar 233 away from the fixing strip 232 contacts the inclined surface of the inclined block 2113 close to the pressing mechanism 24, the first connecting strip 231 passes through and is threadedly provided with a first adjusting bolt 234, the upper surface of the inclined block 2113 close to the pressing mechanism 24 is fixedly provided with a second connecting strip 235, the lower surface of the second connecting strip 235 close to the first connecting strip 231 is fixedly provided with a limiting strip 236, the A sliding rod 233 passes through and is slidably set at the bottom of the limit bar 236, and the first sliding rod 233 and the limit bar 236 are slidably connected in the horizontal and vertical directions. The second connecting bar 235 is fixedly provided with a first button 237 on the lower surface near one end of the first connecting bar 231, and the second connecting bar 235 is fixedly provided with a first alarm 238 on the upper surface near one end of the first connecting bar 231. The first button 237 is cooperatively arranged above the first adjusting bolt 234. The first button 237 and the first alarm 238 are electrically connected, and pressing the first button 237 can control the first alarm 238 to sound an alarm. A connecting plate 239 is fixedly provided in the middle of the first sliding rod 233, and a second sliding rod 2310 is fixedly provided on the upper surface of the connecting plate 239 away from one end of the first sliding rod 233. The second connecting strip 235 is fixedly arranged on the upper surface of the inclined block 2113 near the clamping mechanism 24, so that the liquid medicine in the drainage tube 4 near the clamping mechanism 24 side is first delivered when an intravenous injection is given, so that a pressure difference is formed between the second connecting strip 235 and the first connecting strip 231.

[0027] The clamping mechanism 24 includes an elastic frame 241 fixedly arranged on the inner wall of the regulator body 1, and an extrusion rod 242 is slidably arranged in the inner cavity of the elastic frame 241. The bottom end of the extrusion rod 242 passes through the bottom end of the elastic frame 241 and is fixedly provided with an extrusion plate 243. The upper part of the extrusion rod 242 is fixedly provided with a connecting ring 244, and one end of the connecting ring 244 passes through the side wall of the elastic frame 241. A fixing ring 245 is fixedly provided on one side of the elastic frame 241 in conjunction with the connecting ring 244. A plug 246 is inserted into the inner cavity of the fixing ring 245, and the plug 246 and the fixing ring 245 are slidably connected. The top of the outer surface of the extrusion rod 242 is sleeved with a second spring 247.

[0028] The second spring 247 is fixedly connected between the inner wall of the elastic frame 241 and the connecting ring 244, the connecting ring 244 and the elastic frame 241 are slidably connected, the plug 246 and the connecting ring 244 are inserted into each other, and the plug 246 and the connecting ring 244 are slidably connected, the lower surface of the extrusion plate 243 is in contact with the drainage tube 4, the plug 246 and the second sliding rod 2310 are inserted into each other, and the second sliding rod 2310 and the plug 246 are slidably connected. There is a certain friction between the connecting ring 244 and the plug 246. When the regulator body 1 is placed freely, the plug 246 will not fall off from the connecting ring 244. At this time, the plug 246 limits the second slide bar 2310. When the first slide bar 233 is placed freely, the first slide bar 233 and the fixing bar 232 remain relatively stationary; when the fixing ring 245 and the connecting ring 244 are disengaged, the elastic force of the second spring 247 drives the connecting ring 244 to move downward, thereby driving the extrusion plate 243 to move downward and squeeze the drainage tube 4.

[0029] When in use, the drainage tube 4 is connected in such a way that one end is connected to the hanging bottle and the other end is connected to the indwelling needle, and the regulating mechanism 21 near the side of the clamping mechanism 24 is connected to the drainage tube 4 near the side of the hanging bottle, so that the clamping mechanism 24 can be controlled to quickly press the drainage tube 4 to stop the flow of the small amount of liquid medicine remaining in the drainage tube 4, thereby realizing automatic interruption and alarm, and avoiding the phenomenon of blood backflow caused by not calling medical staff in time when the infusion is about to be completed; under the joint action of the alarm mechanism 23 and the clamping mechanism 24, a quick alarm can be given when the liquid medicine in the drainage tube 4 is about to be infused, and the flow of liquid can be stopped, thereby avoiding the phenomenon of blood backflow; when the liquid medicine in the hanging bottle is about to be infused, the alarm can be given and the flow of liquid can be stopped, thereby avoiding the phenomenon of blood backflow. When the infusion is almost finished, the liquid medicine in the drainage tube 4 gradually decreases. When there is no liquid medicine in the drainage tube 4 near the clamp ring 2111 of the hanging bottle, the drainage tube 4 lacks liquid support. Under the elastic force of the first spring 2112, the elastic rod 2110 is driven to move downward. The movement of the elastic rod 2110 drives the inclined surface block 2113 to move downward. The movement of the inclined surface block 2113 drives the second connecting strip 235 to move downward. One end of the second connecting strip 235 drives the inclined surface block 2113 to squeeze the first sliding rod 233. At the same time, the movement of the second connecting strip 235 drives the first button 237 and the first adjusting bolt 234 to be squeezed. At this time, the first alarm 238 The alarm is sounded to remind the patient and medical staff that the drug solution has been delivered and that the bottle needs to be replaced or the indwelling needle needs to be pulled out in time; the distance between the first adjusting bolt 234 and the first button 237 can be adjusted by rotating the first adjusting bolt 234, so that the alarm distance can be adjusted according to needs; when the inclined block 2113 squeezes the first sliding bar 233, the first sliding bar 233 moves in the horizontal and vertical directions in the limit bar 236, and the movement of the first sliding bar 233 drives the connecting plate 239 to move, and the movement of the connecting plate 239 drives the second sliding bar 2310 to move, and the movement of the second sliding bar 2310 drives the plug 246 to move, so that the plug 246 is in the connecting ring 244 and the fixing ring 245 The second spring 247 is adapted to move the extrusion plate 243 downwards, thereby pressing the drainage tube 4 downwards. The second spring 247 is adapted to move the extrusion plate 243 downwards, thereby pressing the drainage tube 4 downwards. The second spring 247 is adapted to move the extrusion plate 243 downwards, thereby pressing the drainage tube 4 downwards. The extrusion plate 243 is adapted to press the drainage tube 4 downwards, thereby pressing the drainage tube 4 downwards. The extrusion plate 243 is adapted to press the drainage tube 4 downwards, thereby pressing the drainage tube 4 downwards. The extrusion plate 243 is adapted to press the drainage tube 4 downwards, thereby pressing the drainage tube 4 downwards, thereby closing the inner cavity of the drainage tube 4. This prevents the air in the drainage tube 4 from entering the patient's blood vessels, thereby preventing the patient from bleeding back, and providing preparation time for the medical staff to perform subsequent treatment, thereby reducing the harm to the patient.

[0030] like Figure 8-9As shown, the buffer assembly 3 includes a slide plate 31 slidably arranged on the lower surface of the regulator body 1, and second adjustment bolts 32 are threadedly arranged at both ends of the slide plate 31, and a plurality of third sliding rods 33 are fixedly arranged at both ends of the slide plate 31, and the third sliding rods 33 pass through and are slidably connected to the regulator body 1, and the outer surface of the third sliding rod 33 is sleeved with a third spring 34, and the third spring 34 is fixedly connected between the slide plate 31 and the inner wall of the regulator body 1, and two groups of second buttons 35 are fixedly arranged on both sides of the bottom inner wall of the regulator body 1 to cooperate with two groups of second adjustment bolts 32 respectively, and second alarms 36 are fixedly arranged on both sides of the lower surface of the regulator body 1, and the second buttons 35 and the second alarms 36 are electrically connected, and pressing the second buttons 35 can control the second alarm 36 to sound an alarm, and a floating mechanism 37 is provided on the lower surface of the slide plate 31, and a buffer mechanism 38 is provided on the lower surface of the floating mechanism 37, and a card block 39 is fixedly provided at both ends of the buffer mechanism 38.

[0031] When in use, the extra drainage tube 4 is placed in the clamping block 39 and clamped. When the patient's hand swings, the drainage tube 4 is driven to move. When the drainage tube 4 moves, the buffer mechanism 38 can provide preliminary buffering for the drainage tube 4. The buffer mechanism 38 can float on the lower surface of the floating mechanism 37, thereby reducing the interaction force between the regulator body 1 and the drainage tube 4; when the floating mechanism 37 floats, it drives the slide plate 31 to move on the lower surface of the regulator body 1. The movement of the slide plate 31 drives the third slide bar 33 to move and squeeze the third spring 34. The elastic force of the third spring 34 can restore the slide plate 31 to its initial position, thereby providing a certain buffering effect when the drainage tube 4 is pulled; at the same time, when the pulling force is too large, the second adjusting bolt 32 squeezes the second button 35 to a certain extent, causing the second alarm 36 to sound an alarm, reminding the patient to pay attention to prevent the indwelling needle from falling off; the distance between the second adjusting bolt 32 and the second button 35 can be adjusted by rotating the second adjusting bolt 32, so that the alarm distance can be adjusted according to needs and the patient can be reminded in time.

[0032] like Figure 9-11 As shown, the floating mechanism 37 includes a limiting ring 371 fixedly arranged in the middle of the lower surface of the slide 31, and the outer surface of the limiting ring 371 is provided with a plurality of sliding grooves 372 evenly and spaced apart along the circumference, and a fourth sliding rod 374 is slidingly arranged in a plurality of the sliding grooves 372, and a floating plate 373 is fixedly arranged on the opposite side of a plurality of the fourth sliding rods 374, and the outer surface of the fourth sliding rod 374 is provided with a fourth spring 375, and the middle sliding sleeve of the outer surface of the fourth sliding rod 374 is provided with a gasket 376.

[0033] The gasket 376 is slidably connected to the inner wall of the limiting ring 371 , and the fourth spring 375 is fixedly connected between the gasket 376 and the floating plate 373 . The floating plate 373 does not contact the lower surface of the slide plate 31 .

[0034] The buffer mechanism 38 includes a buffer rack 381 fixedly arranged on the lower surface of the floating plate 373, and second sliders 382 are slidably arranged on both sides of the inner cavity of the buffer rack 381, and buffer rods 383 are fixedly arranged on the opposite sides of the two groups of second sliders 382. The outer surface of the buffer rod 383 is sleeved with a fifth spring 384, and a second threaded rod 385 is rotatably arranged on the outer wall of the buffer rack 381, and distance adjustment blocks 386 are threadedly arranged at both ends of the second threaded rod 385. Third alarms 387 are fixedly arranged on the opposite sides of the two groups of distance adjustment blocks 386, and third buttons 388 are fixedly arranged on the opposite sides of the two groups of distance adjustment blocks 386.

[0035] The buffer rod 383 is slidably connected to the buffer frame 381, and the fifth spring 384 is fixedly connected between the second slider 382 and the inner wall of the buffer frame 381. The thread directions at both ends of the second threaded rod 385 are opposite. The third alarm 387 and the third button 388 are electrically connected, and pressing the third button 388 can control the third alarm 387 to sound an alarm. The end of the second slider 382 close to the second threaded rod 385 passes through the side wall of the buffer frame 381, and the end of the second slider 382 close to the second threaded rod 385 is cooperated with the third button 388. The opposite sides of the two groups of buffer rods 383 respectively pass through the side walls of the buffer frame 381 and are fixedly connected to the two groups of blocks 39. A groove is opened at the bottom of the block 39. The groove is a semi-cylindrical structure as a whole, and a convex strip is fixedly provided on the inner wall of the groove. The diameter of the groove is adapted to the diameter of the drainage tube 4.

[0036] The groove and the convex strip can enable the drainage tube 4 to be stably clamped in the clamping block 39, ensure the buffering effect of the drainage tube 4 when being dragged, and avoid the drainage tube 4 from slipping in the clamping block 39; when the patient is sleeping or resting, the hand may inadvertently swing, at which time the clamping block 39 drives the buffer rod 383 to move in the inner cavity of the buffer frame 381, the movement of the buffer rod 383 drives the second sliding block 382 to generate extrusion on the fifth spring 384, the elastic force of the fifth spring 384 enables the clamping block 39 to have a flexible connection effect, and further enables the drainage tube 4 to have a buffering effect within a certain range; the distance adjusting block 386 is driven to move by rotating the second threaded rod 385, so that the distance between the third button 388 and the second sliding block 382 changes; when the distance moved by the second sliding block 382 during the buffering process is too large, the second sliding block 382 generates pressing on the third button 388, and further controls the third alarm 387 to issue an alarm, reminding the patient to pay attention to not casually swing the hand or the body to hit the infusion site, and preventing the indwelling needle from falling off; the third alarm 387, the second alarm 36 and the first alarm 238 respectively adopt alarm sounds with different loudness and tone, so as to facilitate the patient or the medical staff to distinguish and quickly find out the fault cause; the drainage tube 4 when being dragged will cause the buffer frame 381 to shake, the shaking of the buffer frame 381 drives the floating disc 373 to shake, the shaking of the floating disc 373 drives the fourth sliding rod 374 to move in the sliding groove 372, so that the floating disc 373 generates multidirectional floating in the limiting ring 371, and thus the drainage tube 4 has a better buffering effect when being dragged; the movement of the sliding plate 31 at the lower end face of the regulator main body 1 can further reduce the interaction force between the drainage tube 4 and the regulator main body 1 when the drainage tube 4 is dragged; the floating effect of the floating mechanism 37 and the buffering effect of the buffering mechanism 38 can improve the stability between the drainage tube 4 and the regulator main body 1, that is, reduce the possibility of the indwelling needle falling off.

[0037] In summary, the drainage tube 4 is squeezed by the regulating component 2 to control the flow rate of the liquid in the drainage tube 4, which is convenient for adjustment according to actual needs, and the drainage tube 4 can be automatically compressed when the liquid in the drainage tube 4 is about to be transported. The tube wall of the drainage tube 4 is pressed by the external force and the drainage tube 4 is closed, preventing the formation of negative pressure in the drainage tube 4, which leads to the interruption of infusion and the occurrence of blood return; the buffer component 3 can limit the drainage tube 4 and has a buffering effect when the patient is in use. When a dragging force is generated on the drainage tube 4, the buffer component 3 can promptly issue an alarm to remind the patient to pay attention and avoid The indwelling needle falls off from the patient; the flow rate is adjusted by adjusting the size of the cavity of the drainage tube 4 by adjusting the adjustment mechanism 21, and the connecting rod 22 is used to connect the two groups of adjustment mechanisms 21, so that the two groups of adjustment mechanisms 21 squeeze the drainage tubes 4 on both sides of the inner cavity of the regulator body 1 respectively to ensure the stability of the flow rate of the drainage tube 4; when the infusion is almost completed, the liquid in the drainage tube 4 at one end flows out, causing a certain position difference between the two groups of adjustment mechanisms 21. At this time, the alarm mechanism 23 sounds an alarm and drives the clamping mechanism 24 to generate a larger squeezing force on the drainage tube 4, thereby forming a completely closed cross-section in the drainage tube 4 to avoid Prevent air from entering the blood vessels of the infusion recipient and prevent blood backflow; when in use, place the excess drainage tube 4 in the clamping block 39 and clamp it. When the patient's hand swings, the drainage tube 4 will be driven to move. When the drainage tube 4 moves, the buffer mechanism 38 can initially buffer the drainage tube 4. The buffer mechanism 38 can float on the lower surface of the floating mechanism 37, thereby reducing the interaction force between the regulator body 1 and the drainage tube 4; when the floating mechanism 37 floats, it drives the slide plate 31 to move on the lower surface of the regulator body 1, and the movement of the slide plate 31 drives the third slide bar 33 to move The third spring 34 is squeezed, and the elastic force of the third spring 34 can restore the slide plate 31 to its initial position, thereby having a certain buffering effect when the drainage tube 4 is pulled; at the same time, when the pulling force is too large, the second adjusting bolt 32 squeezes the second button 35 to a certain extent, causing the second alarm 36 to sound an alarm, reminding the patient to pay attention to prevent the indwelling needle from falling off; the second adjusting bolt 32 can be rotated to change the position of the second adjusting bolt 32 in the inner cavity of the slide plate 31, and the distance between it and the second button 35 can be adjusted, so that the alarm distance can be adjusted according to needs and the patient can be reminded in time.

Claims

1. An infusion flow regulator, comprising a drainage tube (4) and a regulator body (1) arranged on the drainage tube (4), characterized in that: The inner cavity of the regulator body (1) is provided with a regulating component (2), the lower surface of the regulator body (1) is provided with a buffer component (3), and the drainage tube (4) passes through the regulator body (1); The regulating assembly (2) includes a regulating mechanism (21), wherein the regulating mechanism (21) is provided in two groups, and the two groups of regulating mechanisms (21) are respectively provided on both sides of the inner cavity of the regulator body (1), a connecting rod (22) is provided between the tops of the two groups of regulating mechanisms (21), an alarm mechanism (23) is provided between the bottoms of the two groups of regulating mechanisms (21), and a pressing mechanism (24) is provided on one side of the inner cavity of the regulator body (1) close to one of the groups of regulating mechanisms (21); The regulating mechanism (21) comprises a fixed block (211) fixedly arranged on the top of the inner wall of the main body (1), the fixed block (211) is in the shape of a rectangular plate as a whole, a first threaded rod (212) is rotatably arranged on the side wall of the fixed block (211), a storage rod (213) is fixedly arranged at the four corners of the lower surface of the fixed block (211), a lifting rod (214) is slidably arranged in the inner cavity of the storage rod (213), the bottom end of the lifting rod (214) passes through the bottom end of the storage rod (213) and is fixedly provided with a lifting block (215), a driving block is fixedly arranged on both sides of the upper surface of the lifting block (215), a driving groove (216) is inclined and penetrated on the driving block, and a first threaded rod (212) is slidably arranged on both sides of the lower surface of the fixed block (211) A slider (217), two groups of the first sliders (217) are respectively fixedly provided with two groups of driving rods (218) on opposite sides thereof in cooperation with two groups of driving grooves (216), the driving rods (218) are slidably connected in the driving grooves (216), a limiting rod (219) is fixedly provided in the middle of the lower surface of the lifting block (215), an elastic rod (2110) is slidably provided in the inner cavity of the limiting rod (219), the bottom end of the elastic rod (2110) passes through the bottom end of the limiting rod (219) and is fixedly provided with a clamping ring (2111), a first spring (2112) is provided in the upper part of the inner cavity of the limiting rod (219), an inclined surface block (2113) is fixedly provided at the top end of the elastic rod (2110), and the inclined surfaces of the two groups of inclined surface blocks (2113) are arranged relative to each other.

2. The infusion flow regulator according to claim 1, characterized in that: One end of the first threaded rod (212) extends to the inner cavity of the fixed block (211) and is threadedly connected to the first slider (217). The first spring (2112) is fixedly connected between the lifting block (215) and the elastic rod (2110). The inclined block (2113) and the limiting rod (219) are slidably connected. The lower surface of the clamping ring (2111) fits the drainage tube (4). One group of the first threaded rods (212) is arranged on a side of the fixed block (211) close to the clamping mechanism (24), and the other group of the first threaded rods (212) is arranged on a side of the fixed block (211) away from the clamping mechanism (24). The connecting rod (22) and the two groups of first threaded rods (212) are fixedly connected. The connecting rod (22) and the fixed block (211) are rotatably connected.

3. The infusion flow regulator according to claim 2, characterized in that: The alarm mechanism (23) includes a first connecting strip (231) fixedly arranged on the upper surface of the inclined block (2113) away from the pressing mechanism (24), a fixing strip (232) fixedly arranged on the lower surface of the first connecting strip (231) close to the pressing mechanism (24), a first sliding rod (233) passing through and slidingly arranged on the bottom of the fixing strip (232), an end of the first sliding rod (233) away from the fixing strip (232) contacts the inclined surface of the inclined block (2113) close to the pressing mechanism (24), a first adjusting bolt (234) passing through and threadedly arranged on the end of the first connecting strip (231) close to the pressing mechanism (24), a second connecting strip (235) fixedly arranged on the upper surface of the inclined block (2113) close to the pressing mechanism (24), a limiting strip (236) fixedly arranged on the lower surface of the second connecting strip (235) close to the first connecting strip (231), the first The sliding bar (233) passes through and is slidably arranged at the bottom of the limit bar (236), and the first sliding bar (233) and the limit bar (236) are slidably connected in both the horizontal and vertical directions. A first button (237) is fixedly arranged on the lower surface of the second connecting bar (235) near one end of the first connecting bar (231), and a first alarm (238) is fixedly arranged on the upper surface of the second connecting bar (235) near one end of the first connecting bar (231). The first button (237) is cooperatively arranged above the first adjusting bolt (234). The first button (237) and the first alarm (238) are electrically connected, and pressing the first button (237) can control the first alarm (238) to sound an alarm. A connecting plate (239) is fixedly arranged in the middle of the first sliding bar (233), and a second sliding bar (2310) is fixedly arranged on the upper surface of the connecting plate (239) away from one end of the first sliding bar (233).

4. The infusion flow regulator according to claim 3, characterized in that: The clamping mechanism (24) includes an elastic frame (241) fixedly arranged on the inner wall of the regulator body (1), an extrusion rod (242) is slidably arranged in the inner cavity of the elastic frame (241), the bottom end of the extrusion rod (242) passes through the bottom end of the elastic frame (241) and is fixedly provided with an extrusion plate (243), a connecting ring (244) is fixedly provided on the upper part of the extrusion rod (242), one end of the connecting ring (244) passes through the side wall of the elastic frame (241), a fixing ring (245) is fixedly provided on one side of the elastic frame (241) in cooperation with the connecting ring (244), a plug (246) is inserted into the inner cavity of the fixing ring (245), and the plug (246) and the fixing ring (245) are slidably connected, and a second spring (247) is sleeved on the top of the outer surface of the extrusion rod (242).

5. The infusion flow regulator according to claim 4, characterized in that: The second spring (247) is fixedly connected between the inner wall of the elastic frame (241) and the connecting ring (244), the connecting ring (244) and the elastic frame (241) are slidably connected, the plug (246) and the connecting ring (244) are engaged, and the plug (246) and the connecting ring (244) are slidably connected, the lower surface of the extrusion plate (243) is in contact with the drainage tube (4), the plug (246) and the second slide bar (2310) are engaged, and the second slide bar (2310) and the plug (246) are slidably connected.

6. The infusion flow regulator according to claim 1, characterized in that: The buffer assembly (3) includes a slide plate (31) slidably arranged on the lower surface of the regulator body (1), and second regulating bolts (32) are threadedly arranged on both ends of the slide plate (31). A plurality of third slide rods (33) are fixedly arranged on both ends of the slide plate (31), and the third slide rods (33) penetrate and are slidably connected to the regulator body (1). The outer surface of the third slide rod (33) is sleeved with a third spring (34), and the third spring (34) is fixedly connected between the slide plate (31) and the inner wall of the regulator body (1). The two inner walls of the bottom of the regulator body (1) are fixedly connected. Two groups of second buttons (35) are fixedly provided on the sides respectively cooperating with the two groups of second adjustment bolts (32); second alarms (36) are fixedly provided on both sides of the lower surface of the regulator body (1); the second buttons (35) and the second alarms (36) are electrically connected, and pressing the second buttons (35) can control the second alarms (36) to sound an alarm; a floating mechanism (37) is provided on the lower surface of the slide (31); a buffer mechanism (38) is provided on the lower surface of the floating mechanism (37); and a card block (39) is fixedly provided at both ends of the buffer mechanism (38).

7. The infusion flow regulator according to claim 6, characterized in that: The floating mechanism (37) includes a limiting ring (371) fixedly arranged in the middle of the lower surface of the slide plate (31), the outer surface of the limiting ring (371) is provided with a plurality of sliding grooves (372) uniformly and spaced apart along the circumference, a fourth sliding rod (374) is slidingly arranged in a plurality of the sliding grooves (372), a floating plate (373) is fixedly arranged on the opposite side of a plurality of the fourth sliding rods (374), the outer surface of the fourth sliding rod (374) is provided with a fourth spring (375), and the middle sliding sleeve of the outer surface of the fourth sliding rod (374) is provided with a gasket (376).

8. The infusion flow regulator according to claim 7, characterized in that: The gasket (376) and the inner wall of the limiting ring (371) are slidably connected, the fourth spring (375) is fixedly connected between the gasket (376) and the floating plate (373), and the floating plate (373) and the lower surface of the slide plate (31) are not in contact.

9. The infusion flow regulator according to claim 7, characterized in that: The buffer mechanism (38) includes a buffer frame (381) fixedly arranged on the lower surface of the floating plate (373), second sliders (382) are slidably arranged on both sides of the inner cavity of the buffer frame (381), buffer rods (383) are fixedly arranged on opposite sides of the two groups of second sliders (382), and the outer surface of the buffer rod (383) is sleeved with a fifth spring (384), a second threaded rod (385) is rotatably arranged on the outer wall of the buffer frame (381), and distance adjustment blocks (386) are threadedly arranged at both ends of the second threaded rod (385), third alarms (387) are fixedly arranged on opposite sides of the two groups of distance adjustment blocks (386), and third buttons (388) are fixedly arranged on opposite sides of the two groups of distance adjustment blocks (386).

10. The infusion flow regulator according to claim 9, characterized in that: The buffer rod (383) and the buffer frame (381) are slidably connected, the fifth spring (384) is fixedly connected between the second slider (382) and the inner wall of the buffer frame (381), the threads at both ends of the second threaded rod (385) are in opposite directions, the third alarm (387) and the third button (388) are electrically connected, and pressing the third button (388) can control the third alarm (387) to sound an alarm, and the second slider (382) is close to one side of the second threaded rod (385). The end of the second slider (382) passes through the side wall of the buffer frame (381), and the second slider (382) is close to one end of the second threaded rod (385) and the third button (388) are arranged in cooperation. The opposite sides of the two groups of buffer rods (383) respectively pass through the side walls of the buffer frame (381) and are fixedly connected to the two groups of clamping blocks (39). A groove is opened through the bottom of the clamping block (39). The groove is a semi-cylindrical structure as a whole, and a convex strip is fixedly provided on the inner wall of the groove. The diameter of the groove is adapted to the diameter of the drainage tube (4).

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