Wearable medicine extravasation early warning processing device

Abstract

The invention relates to the technical field of medical instruments, in particular to a wearable medicine exosmosis early warning processing device, when local tissue swelling is caused by exosmosis of a contrast agent, skin pressure changes, skin temperature is abnormal, a pressure sensor and an infrared sensor are attached to the skin surface of an injection part, and the pressure sensor and the infrared sensor are used for detecting the exosmosis of the contrast agent. Meanwhile, the pressure sensor and the infrared sensor are connected with a microprocessor, the pressure sensor monitors the skin surface pressure change in real time, and the infrared sensor detects the skin surface temperature change in real time and is used for monitoring and judging whether the contrast agent is exosmosis or not; when the microprocessor judges that medicine exosmosis occurs, an instruction is immediately sent to the electromagnetic pinch valve, so that the electromagnetic pinch valve is rapidly closed, infusion is stopped, and more medicine exosmosis is prevented. The device can monitor the medicine exosmosis condition in real time, give out early warning in time at the initial stage of medicine exosmosis, and automatically take corresponding treatment measures, so that the injury of the medicine exosmosis to a patient is effectively reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to a wearable drug extravasation warning and treatment device. Background Art

[0002] In the medical process, intravenous infusion is a common treatment method. However, drug extravasation is one of the common complications during intravenous infusion, especially when using hypertonic drugs and vasoactive drugs, the risk of extravasation is higher. After drug extravasation, in mild cases, it will cause local tissue necrosis and ulcers, bringing great pain to the patient, and at the same time increasing the medical cost and risk.

[0003] At the same time, the clinical monitoring of drug extravasation mainly relies on the regular inspections by medical staff and the self - perception of patients. This method has obvious limitations. On the one hand, medical staff cannot achieve real - time monitoring and often discover it only after drug extravasation occurs; on the other hand, patients may not be able to perceive and express the symptoms of extravasation in a timely and accurate manner due to reasons such as age, consciousness state, and condition. In terms of the treatment of drug extravasation, the existing methods mainly take measures such as cold compress, hot compress, and wet compress after discovering extravasation, but these methods are often remedial measures afterwards and cannot fundamentally avoid the harm caused by extravasation to patients. Summary of the Invention

[0004] The main purpose of the present invention is to overcome the deficiencies in the prior art and provide a wearable drug extravasation warning and treatment device. This wearable drug extravasation warning and treatment device can monitor the drug extravasation situation in real - time, issue a warning in the initial stage of drug extravasation, and can automatically take corresponding treatment measures, effectively reducing the harm caused by drug extravasation to patients.

[0005] The technical solution adopted by the present invention to achieve its technical purpose is: a wearable drug extravasation warning and treatment device, including a drug storage bin, both ends of the drug storage bin are fixedly provided with adjustable elastic wearing structures, and a micro - processor is fixedly provided on one side thereof, and a wet compress pad is also fixedly provided on the other side. A pressure sensor and an infrared sensor are fixedly provided on the wet compress pad.

[0006] The adjustable elastic wearing structure wears the drug storage bin on the limb, and monitors the surface pressure and temperature of the limb through a pressure sensor and an infrared sensor. By combining the pressure sensor and the infrared sensor, the pressure sensor is attached to the skin surface of the limb at the injection site to monitor the pressure change on the skin surface of the limb in real time. When local tissue swelling occurs due to the extravasation of the contrast agent, the pressure on the skin surface of the limb will change, and the pressure sensor can quickly capture this change; the infrared sensor is used to detect the change in the local skin temperature. After the extravasation of the contrast agent, the blood circulation and metabolism of the local tissue will be affected, resulting in abnormal skin temperature. The infrared sensor can detect this temperature change and corroborate with the data of the pressure sensor to improve the accuracy of extravasation monitoring.

[0007] The drug storage bin is connected to the wet compress pad. When drug extravasation occurs in the limb, the data changes generated by the pressure sensor and the infrared sensor are fed back to the microprocessor, and the microprocessor controls the wet compress drug inside the drug storage bin to be delivered to the wet compress pad to continuously wet compress the extravasation site of the limb; the drug storage bin is filled with a special wet compress drug for drug extravasation, such as magnesium sulfate solution, etc. After the warning is issued, the wet compress drug in the drug storage bin is slowly delivered to the wet compress pad to continuously wet compress the extravasation site.

[0008] At the same time, the microprocessor is also electrically connected to an electromagnetic pinch valve. The electromagnetic pinch valve is installed on the infusion hose of the infusion device. The microprocessor controls the electromagnetic pinch valve to close the infusion device. When the microprocessor determines that drug extravasation has occurred, it immediately sends an instruction to the electromagnetic pinch valve to quickly close it, blocking the infusion and preventing more drug extravasation.

[0009] Preferably, an infusion pump and a wet compress drug are arranged inside the drug storage bin. The infusion pump is communicated with the wet compress pad through a connecting pipe, and the wet compress drug is delivered to the wet compress pad through the infusion pump; The connecting pipe is provided with a plurality of branch structures, which are connected to the wet compress pad from multiple positions, facilitating the wet compress pad to uniformly absorb the wet compress drug; at the same time, a plurality of pressure sensors and infrared sensors are also provided, and both are arranged in a circular array in the wet compress pad, and the two are arranged alternately.

[0010] Preferably, the adjustable elastic wearing structure includes an elastic arm sleeve, and the elastic arm sleeve includes a breathable and waterproof outer layer, a liquid storage layer, a filter membrane and a breathable and water-leaking inner layer; The breathable and waterproof outer layer is fixed at both ends of the drug storage bin. The liquid storage layer, the filter membrane and the breathable and water-leaking inner layer are sequentially arranged inside the breathable and waterproof outer layer; the bottom of the breathable and water-leaking inner layer is exposed outside the breathable and waterproof outer layer and is flush with the bottom of the breathable and water-leaking inner layer so as to be able to contact the surface of the limb. The filter membrane is provided with membrane holes for communicating the liquid storage layer and the breathable and water-leaking inner layer.

[0011] The elastic arm sleeve consists of an outer layer made of breathable waterproof material and an inner layer made of breathable water-leaking material. A liquid storage layer is arranged between the outer layer and the inner layer. The liquid storage layer is used to hold wet compress drugs, and its inner cavity is designed to facilitate the addition of wet compress drugs. A filter membrane is arranged between the liquid storage layer and the inner layer, and the filter membrane is provided with membrane pores for communicating the liquid storage layer and the inner layer.

[0012] Preferably, the infusion pump is also fixedly communicated with the liquid storage layer through a connecting pipe, and the wet compress drug is conveyed into the liquid storage layer through the infusion pump and the connecting pipe. When there is a wet compress drug in the liquid storage layer, the drug slowly penetrates into the inner layer through the membrane pores, and continuously wet compresses the skin contacted by the inner layer (i.e., the extravasation site of the contrast agent).

[0013] Preferably, the adjustable elastic wearing structure further includes an elastic component, and the elastic component includes an outer sleeve, an inner tube, a tension spring, a threaded joint, a connecting convex head, a magic tape and a connecting cloth; Both the outer sleeve and the inner tube are arranged as flexible tube structures, and the outer sleeve is sleeved on the open end of the inner tube; The tension spring is located inside the outer sleeve and the inner tube, and one end of it is fixedly installed inside the outer sleeve through a threaded joint, and the other end is fixedly installed inside the inner tube through a connecting convex head.

[0014] By pulling the inner tube, it can drive the tension spring to stretch inside the outer sleeve, which is not only beneficial to adjusting the tightness, but also beneficial to binding on the patient's limb. Because some limb parts are uneven or have obstacles, and the long strip structure composed of the outer sleeve, the inner tube and the tension spring is convenient to pass through or bypass the finger gaps or uneven parts, increasing the connection stability.

[0015] Preferably, the threaded joint is fixed on the port of the outer sleeve, one side of the threaded joint is fixedly connected to the breathable waterproof outer layer through a hook and a hanging ring, and one side of the inner tube is fixedly connected to the connecting cloth sewn with a magic tape through a hook and a hanging ring.

[0016] The adjustable elastic wearing structure is fixed on the patient's limb by means of a magic tape or the like. The adjustable elastic components are arranged at both ends of the elastic arm sleeve, which can adapt to limbs of different thicknesses, facilitate wearing and adjusting the tightness, ensure that the device is stably fixed at the extravasation site. More importantly, the fixing and adjusting parts are convenient to operate. For example, the long strip structure composed of the outer sleeve, the inner tube and the tension spring can pass through the gaps between the patient's fingers, etc., which is more conducive to the installation and wearing of the overall components, can meet the needs of different patients, and improves the applicability of the device.

[0017] Preferably, the electromagnetic pinch valve consists of a pinch box, an electric control telescopic rod, a coupling groove and a ball valve; The clamping box is inserted and connected to the infusion hose of the infusion set through a coupling groove formed inside it. The electric control telescopic rod is fixedly installed on the clamping box, and its telescopic end passes through the clamping box and is fixedly connected to the ball valve. The ball valve is located in the inner cavity of the coupling groove; After passing through the coupling groove, the infusion hose of the infusion set is located below the ball valve. The ball valve is driven by the electric control telescopic rod to move telescopically, and the ball valve can press the infusion set against the inner wall of the coupling groove.

[0018] Preferably, the clamping box is provided with two symmetrical parts. The two parts are hinged on one side by a hinge and clamped on the other side by a plastic buckle. Setting the clamping box as two parts facilitates the installation of the clamping box on the infusion hose of the infusion set.

[0019] Preferably, the coupling groove is integrally arranged in an ellipsoidal structure inside the clamping box, and its two ends extend to the outside of the clamping box. The infusion hose of the infusion set passes through the gaps formed at the two ends of the coupling groove.

[0020] Preferably, when local tissue swelling is caused by contrast agent extravasation, the skin pressure will change and the skin temperature will also be abnormal. The pressure sensor 8 and the infrared sensor 9 are attached to the skin surface at the injection site. At the same time, the pressure sensor 8 and the infrared sensor 9 are connected to a microprocessor. The pressure sensor 8 monitors the change of skin surface pressure in real time, and the infrared sensor 9 detects the change of skin surface temperature in real time, which is used to monitor and judge whether contrast agent extravasation occurs; when the microprocessor determines that drug extravasation has occurred, it immediately sends an instruction to the electromagnetic pinch valve 2 to quickly close it, block the infusion, and prevent more drug extravasation.

[0021] The device includes a drug storage bin 3 which contains a special wet compress drug for drug extravasation. After the pressure sensor 8 and the infrared sensor 9 give an early warning, the wet compress drug in the drug storage bin 3 is slowly transported to the wet compress pad 7 through the connecting pipe 6, so as to continuously wet compress the extravasated part. And the liquid storage layer 402 is used to hold the wet compress drug. When there is wet compress drug in the liquid storage layer 402, the wet compress drug slowly penetrates through the membrane pores on the filter membrane 403 to the breathable and water-permeable inner layer 404, and continuously wet compresses the skin (i.e., the contrast agent extravasated part) contacted by the breathable and water-permeable inner layer 404.

[0022] Compared with the prior art, the beneficial effects of the present invention are: The wearable device for warning and treating drug extravasation can monitor the drug extravasation situation in real time through a microprocessor, a pressure sensor and an infrared sensor, issue a warning in time at the initial stage of drug extravasation, and can automatically take corresponding wet compress treatment measures through a drug storage bin and a conveying component inside it, effectively reducing the harm caused by drug extravasation to patients. At the same time, the adjustable elastic wearing structure can increase the wet compress area on the one hand and facilitate the installation of the overall device on the patient's limb on the other hand. Description of the Drawings

[0023] Figure 1 It is a top view structural schematic diagram of the wearable device for warning and treating drug extravasation.

[0024] Figure 2 It is a top view sectional structural schematic diagram of a part of the wearable device for warning and treating drug extravasation.

[0025] Figure 3 It is a bottom view structural schematic diagram of a part of the wearable device for warning and treating drug extravasation.

[0026] Figure 4 It is a top view structural schematic diagram of the elastic component.

[0027] Figure 5 It is a front view sectional structural schematic diagram of the electromagnetic pinch valve.

[0028] Wherein: 1 - Infusion set; 2 - Electromagnetic pinch valve; 201 - Clamping box; 202 - Electric control telescopic rod; 203 - Coupling groove; 204 - Ball valve; 3 - Drug storage bin; 4 - Adjustable elastic wearing structure; 401 - Breathable and waterproof outer layer; 402 - Liquid containing layer; 403 - Filter membrane; 404 - Breathable and water - leaking inner layer; 5 - Elastic component; 501 - Outer sleeve; 502 - Inner cylinder tube; 503 - Tension spring; 504 - Threaded joint; 505 - Connecting convex head; 506 - Magic tape; 507 - Connecting cloth; 6 - Connecting pipe; 7 - Wet compress pad; 8 - Pressure sensor; 9 - Infrared sensor; 10 - Microprocessor. Detailed Embodiment

[0029] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present invention is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present invention, it should also be noted that, unless otherwise clearly specified and defined, the terms "set", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0031] To make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the scope of the present invention. In addition, in the following description, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present invention. Embodiment 1

[0032] Please refer to Figures 1 - 5 , a wearable device for early warning and treatment of drug extravasation, comprising a drug storage bin 3. Both ends of the drug storage bin 3 are fixedly provided with an adjustable elastic wearing structure 4, and a microprocessor 10 is fixedly provided on one side thereof, and a wet compress pad 7 is also fixedly provided on the other side. A pressure sensor 8 and an infrared sensor 9 are fixedly provided on the wet compress pad 7. There are multiple pressure sensors 8 and infrared sensors 9, and both are arranged in a circular array in the wet compress pad 7 and are arranged alternately.

[0033] The adjustable elastic wearing structure 4 wears the drug storage bin 3 on the limb, and the pressure sensor 8 and the infrared sensor 9 are used to monitor the pressure and temperature on the surface of the limb. By combining the pressure sensor 8 and the infrared sensor 9, the pressure sensor 8 is attached to the skin surface of the limb at the injection site to monitor the pressure change on the skin surface of the limb in real time. When the contrast agent extravasates and causes local tissue swelling, the pressure on the skin surface of the limb will change, and the pressure sensor 8 can quickly capture this change; the infrared sensor 9 is used to detect the change in the local skin temperature. After the contrast agent extravasates, the blood circulation and metabolism of the local tissue will be affected, resulting in abnormal skin temperature. The infrared sensor 9 can detect this temperature change and corroborate with the data of the pressure sensor 8 to improve the accuracy of extravasation monitoring.

[0034] The drug storage bin 3 is connected to the wet compress pad 7. When drug extravasation occurs in the limb, the pressure sensor 8 and the infrared sensor 9 feedback the data changes generated to the microprocessor 10, and the microprocessor 10 controls the wet compress drug inside the drug storage bin 3 to be delivered to the wet compress pad 7 to continuously wet compress the extravasation site of the limb; an infusion pump and wet compress drugs are arranged inside the drug storage bin 3, the infusion pump is connected to the wet compress pad 7 through a connecting pipe 6, and the wet compress drug is delivered to the wet compress pad 7 through the infusion pump; the connecting pipe 6 is provided with a plurality of branch structures and is connected to the wet compress pad 7 from multiple positions, facilitating the wet compress pad 7 to uniformly absorb the wet compress drug; the drug storage bin 3 is filled with special wet compress drugs for drug extravasation, such as magnesium sulfate solution, etc. After the early warning is issued, the wet compress drug in the drug storage bin 3 is slowly delivered to the wet compress pad to continuously wet compress the extravasation site.

[0035] Meanwhile, the microprocessor 10 is also electrically connected to an electromagnetic pinch valve 2. The electromagnetic pinch valve 2 is installed on the infusion hose of the infusion device 1. The microprocessor 10 controls the electromagnetic pinch valve 2 to close the infusion device 1. When the microprocessor 10 determines that drug extravasation has occurred, it immediately issues an instruction to the electromagnetic pinch valve 2 to quickly close it, blocking the infusion and preventing more drug extravasation. Embodiment 2

[0036] Please refer to Figures 1 - 3 Based on the above embodiment, for the wearable drug extravasation early warning processing device, the adjustable elastic wearing structure 4 includes an elastic arm sleeve. The elastic arm sleeve includes a breathable and waterproof outer layer 401, a liquid storage layer 402, a filter membrane 403, and a breathable and water-leaking inner layer 404; The breathable and waterproof outer layer 401 is fixed at both ends of the drug storage bin 3. Inside the breathable and waterproof outer layer 401, there are successively arranged a liquid storage layer 402, a filter membrane 403, and a breathable and water-leaking inner layer 404; the bottom of the breathable and water-leaking inner layer 404 is exposed outside the breathable and waterproof outer layer 401 and is flush with the bottom of the breathable and water-leaking inner layer 404 so as to be able to contact the surface of the limb. The filter membrane 403 is provided with membrane pores for communicating the liquid storage layer 402 and the breathable and water-leaking inner layer 404.

[0037] Furthermore, in this example, the infusion pump is also fixedly communicated with the liquid storage layer 402 through the connecting pipe 6, and the wet compress drug is delivered into the liquid storage layer 402 through the infusion pump and the connecting pipe 6. When there is wet compress drug in the liquid storage layer 402, the drug slowly penetrates into the inner layer through the membrane pores to continuously wet compress the skin (i.e., the contrast agent extravasation site) in contact with the inner layer.

[0038] Specifically, when in use, the elastic arm sleeve is composed of an outer layer made of breathable waterproof material and an inner layer made of breathable water-permeable material. A liquid storage layer 402 is arranged between the outer layer and the inner layer. The liquid storage layer 402 is used to hold wet compress drugs, and its inner cavity is designed to facilitate the addition of wet compress drugs. A filter membrane 403 is arranged between the liquid storage layer 402 and the inner layer, and the filter membrane 403 is provided with membrane pores for communicating the liquid storage layer 402 and the inner layer.

[0039] The solution in this embodiment can be selectively combined and used with the solutions in other embodiments. Embodiment 3

[0040] Please refer to Figure 1 and Figure 4 Based on the above embodiments, for the wearable drug extravasation warning and treatment device, the adjustable elastic wearing structure 4 further includes an elastic component 5. The elastic component 5 includes an outer sleeve 501, an inner tube 502, a tension spring 503, a threaded joint 504, a connecting convex head 505, a magic tape 506, and a connecting cloth 507. Both the outer sleeve 501 and the inner tube 502 are arranged as flexible tube structures, and the outer sleeve 501 is sleeved on the open end of the inner tube 502. The tension spring 503 is located inside the outer sleeve 501 and the inner tube 502, and one end of it is fixedly installed inside the outer sleeve 501 through the threaded joint 504, and the other end is fixedly installed inside the inner tube 502 through the connecting convex head 505. By pulling the inner tube 502, it can drive the tension spring 503 to stretch inside the outer sleeve 501, which is not only beneficial for adjusting the tightness, but also beneficial for binding on the patient's limb. Because some limb parts are uneven or have obstructions, and the long strip structure composed of the sleeve 501, the inner tube 502, and the tension spring 503 is convenient for passing through or bypassing finger gaps or uneven parts, increasing the connection stability.

[0041] The threaded joint 504 is fixed on the port of the outer sleeve 501. One side of the threaded joint 504 is fixedly connected to the breathable waterproof outer layer 401 through a hook and a hanging ring. One side of the inner tube 502 is fixedly connected to the connecting cloth 507 sewn with the magic tape 506 through a hook and a hanging ring. The adjustable elastic wearing structure 4 is fixed on the patient's limb by means of the magic tape 506, etc. Adjustable elastic components 5 are arranged at both ends of the elastic arm sleeve, which can adapt to limbs of different thicknesses, facilitate wearing and adjusting the tightness, ensure that the device is stably fixed at the extravasation site. More importantly, the fixing and adjusting parts are convenient to operate. For example, the long strip structure composed of the outer sleeve 501, the inner tube 502, and the tension spring 503 can pass through the gaps between the patient's fingers, etc., which is more conducive to the installation and wearing of the overall components, can meet the needs of different patients, and improves the applicability of the device.

[0042] Specifically, when in use, the adjustable elastic wearing structure 4 is fixed on the patient's limb by means of Velcro 506 or the like. By pulling the inner cylinder tube 502, it can drive the tension spring 503 to stretch inside the outer sleeve 501, which is beneficial to adjusting the tightness. Then, through the long strip structure composed of the sleeve 501, the inner cylinder tube 502, and the tension spring 503, it is convenient to pass through or bypass the finger gaps or uneven parts, increasing the stability of the connection.

[0043] The solutions in this embodiment can be selectively combined with the solutions in other embodiments for use. Embodiment 4

[0044] Please refer to Figure 1 and Figure 5 , on the basis of the above embodiments, for the wearable drug extravasation warning and treatment device, the electromagnetic pinch valve 2 includes a pinch box 201, an electric control telescopic rod 202, a coupling groove 203, and a ball valve 204; The pinch box 201 is penetrated and connected to the infusion hose of the infusion device 1 through the coupling groove 203 opened inside it. The pinch box 201 is provided with two symmetrical parts, and the two parts are hinged on one side through a hinge and clamped on the other side through a plastic buckle; setting the pinch box 201 as two parts facilitates the installation of the pinch box 201 on the infusion hose of the infusion device 1. The coupling groove 203 is integrally arranged in an ellipsoidal structure inside the pinch box 201, and its two ends extend to the outside of the pinch box 201. The infusion hose of the infusion device 1 passes through the gaps formed by the two ends of the coupling groove 203 and the pinch box 201.

[0045] The electric control telescopic rod 202 is fixedly installed on the pinch box 201, and its telescopic end passes through the pinch box 201 and is fixedly connected to the ball valve 204. The ball valve 204 is located in the inner cavity of the coupling groove 203; the infusion hose of the infusion device 1 is located below the ball valve 204 after passing through the coupling groove 203. By driving the ball valve 204 to move telescopically through the electric control telescopic rod 202, the ball valve 204 can press the infusion device 1 against the inner wall of the coupling groove 203.

[0046] Specifically, when in use, when the microprocessor 10 determines that drug extravasation has occurred, it immediately sends an instruction to the electric control telescopic rod 202 in the electromagnetic pinch valve 2. By driving the ball valve 204 to move telescopically through the electric control telescopic rod 202, the ball valve 204 can press the infusion device 1 against the inner wall of the coupling groove 203, so that the infusion hose of the infusion device 1 is tightly blocked, causing the infusion device 1 to quickly close and block the infusion.

[0047] The solutions in this embodiment can be selectively combined with the solutions in other embodiments for use.

[0048] The working principle and specific usage process of the wearable device for warning and treating drug extravasation: When the infusion set 1 is in use, the whole device is worn on the limb through the adjustable elastic wearing structure 4, so that the wet compress pad 7 covers the needle part of the infusion set. The elastic component can fix the drug storage bin 3 on the patient's limb by means of Velcro 506, etc. By pulling the inner cylinder tube 502, it can drive the tension spring 503 to stretch inside the outer sleeve 501, which is beneficial to adjusting the tightness and also convenient for passing through or bypassing finger gaps or uneven parts. The surface of the limb is contacted by the pressure sensor 8 and the infrared sensor 9, so as to monitor the skin surface pressure and temperature of the limb.

[0049] When drug extravasation occurs in the limb, the data changes generated by the pressure sensor 8 and the infrared sensor 9 are fed back to the microprocessor 10. The microprocessor 10 controls the wet compress drug inside the drug storage bin 3 to be delivered to the wet compress pad 7 to continuously wet compress the extravasation site of the limb; there is an infusion pump and wet compress drug inside the drug storage bin 3. The infusion pump is connected to the wet compress pad 7 through a connecting pipe 6 with multiple branches. The multiple branch structures of the connecting pipe 6 are connected to the wet compress pad 7 from multiple positions, which is convenient for the wet compress pad 7 to evenly absorb the wet compress drug. After the warning is issued, the wet compress drug in the drug storage bin 3 is slowly delivered to the wet compress pad 7 to continuously wet compress the extravasation site.

[0050] At the same time, when the microprocessor 10 determines that drug extravasation has occurred, it immediately sends an instruction to the electric control telescopic rod 202 in the electromagnetic pinch valve 2. The electric control telescopic rod 202 drives the ball valve 204 to move telescopically. The ball valve 204 can press the infusion set 1 against the inner wall of the coupling groove 203, so that the infusion hose of the infusion set 1 is tightly blocked, so that the infusion set 1 is quickly closed and the infusion is blocked.

[0051] Moreover, the infusion pump is also fixedly connected to the liquid storage layer 402 through the connecting pipe 6, and the wet compress drug is delivered to the liquid storage layer 402 through the infusion pump and the connecting pipe 6. When there is wet compress drug in the liquid storage layer 402, the drug slowly penetrates into the inner layer through the membrane pores to continuously wet compress the skin in contact with the inner layer (i.e., the contrast agent extravasation site). The elastic arm sleeve is to increase the wet compress area on the surface of the limb.

[0052] It should be noted that although the above-mentioned embodiments have been described in this article, the patent protection scope of the present invention is not limited thereby. Therefore, based on the innovative concept of the present invention, the changes and modifications made to the embodiments described in this article, or the equivalent structures, equivalent processes or equivalent function transformations made by using the content of the specification and drawings of the present invention, directly or indirectly applying the above technical solutions to other related technical fields, are all included in the protection scope of the present invention patent.

Claims

1. A wearable device for early warning and treatment of drug extravasation, characterized in that: It includes a drug storage bin (3), adjustable elastic wearing structures (4) are fixedly arranged at both ends of the drug storage bin (3), a microprocessor (10) is fixedly arranged on one side thereof, and a wet compress pad (7) is also fixedly arranged on the other side. A pressure sensor (8) and an infrared sensor (9) are fixedly arranged on the wet compress pad (7). The adjustable elastic wearing structures (4) wear the drug storage bin (3) on a limb. The pressure sensor (8) and the infrared sensor (9) monitor the pressure and temperature on the surface of the limb. The drug storage bin (3) is connected to the wet compress pad (7). When drug extravasation occurs on the limb, the data changes generated by the pressure sensor (8) and the infrared sensor (9) are fed back to the microprocessor (10), and the microprocessor (10) controls the wet compress drug inside the drug storage bin (3) to be delivered to the wet compress pad (7) to continuously wet compress the extravasated part of the limb. Meanwhile, the microprocessor (10) is also electrically connected to an electromagnetic pinch valve (2). The electromagnetic pinch valve (2) is installed on the infusion hose of the infusion set (1), and the microprocessor (10) controls the electromagnetic pinch valve (2) to close the infusion set (1).

2. The wearable drug extravasation warning and processing device according to claim 1, wherein: An infusion pump and a wet compress drug are arranged inside the drug storage bin (3). The infusion pump is communicated with the wet compress pad (7) through a connecting pipe (6), and the wet compress drug is delivered to the wet compress pad (7) through the infusion pump.

3. The wearable drug extravasation warning and treatment device according to claim 2, wherein: The adjustable elastic wearing structure (4) includes an elastic arm sleeve. The elastic arm sleeve includes a breathable and waterproof outer layer (401), a liquid storage layer (402), a filter membrane (403), and a breathable and water-permeable inner layer (404). The breathable and waterproof outer layer (401) is fixed at both ends of the drug storage bin (3). The liquid storage layer (402), the filter membrane (403), and the breathable and water-permeable inner layer (404) are sequentially arranged inside the breathable and waterproof outer layer (401). The bottom of the breathable and water-permeable inner layer (404) is exposed outside the breathable and waterproof outer layer (401) and is flush with the bottom of the breathable and water-permeable inner layer (404) to be able to contact the surface of the limb. The filter membrane (403) is provided with membrane holes for communicating the liquid storage layer (402) and the breathable and water-permeable inner layer (404).

4. The wearable device for warning and treating drug extravasation according to claim 3, characterized in that: The infusion pump is also fixedly communicated with the liquid storage layer (402) through the connecting pipe (6), and the wet compress drug is delivered into the liquid storage layer (402) through the infusion pump and the connecting pipe (6).

5. The wearable drug extravasation warning and treatment device according to claim 3, characterized in that: The adjustable elastic wearing structure (4) further includes an elastic component (5). The elastic component (5) includes an outer sleeve pipe (501), an inner cylinder pipe (502), a tension spring (503), a threaded joint (504), a connecting convex head (505), a magic tape (506), and a connecting cloth (507). Both the outer sleeve pipe (501) and the inner cylinder pipe (502) are arranged as hose structures. The outer sleeve pipe (501) sleeves the open end of the inner cylinder pipe (502). The tension spring (503) is located inside the outer sleeve (501) and the inner cylinder tube (502), and one end of it is fixedly installed inside the outer sleeve (501) through a threaded joint (504), and the other end is fixedly installed inside the inner cylinder tube (502) through a connecting convex head (505).

6. The wearable device for warning and treating drug extravasation according to claim 5, characterized in that: The threaded joint (504) is fixed on the port of the outer sleeve (501). One side of the threaded joint (504) is fixedly connected to the breathable and waterproof outer layer (401) through a hook and a hanging ring. One side of the inner cylinder tube (502) is fixedly connected to a connecting cloth (507) sewn with a magic tape (506) through a hook and a hanging ring.

7. The wearable drug extravasation warning and treatment device according to claim 1, wherein: The electromagnetic pinch valve (2) consists of a pinch box (201), an electric control telescopic rod (202), a coupling groove (203) and a ball valve (204); The pinch box (201) is penetrated and connected to the infusion hose of the infusion set (1) through the coupling groove (203) opened inside it. The electric control telescopic rod (202) is fixedly installed on the pinch box (201), and its telescopic end passes through the pinch box (201) and is fixedly connected to the ball valve (204). The ball valve (204) is located in the inner cavity of the coupling groove (203); The infusion hose of the infusion set (1) is located below the ball valve (204) after passing through the coupling groove (203). The ball valve (204) is driven by the electric control telescopic rod (202) to move telescopically, and the ball valve (204) can press the infusion set (1) against the inner wall of the coupling groove (203).

8. The wearable device for early warning and treatment of drug extravasation according to claim 7, characterized in that: The pinch box (201) is provided with two symmetrical parts. The two parts are hinged on one side through a hinge and are snap-connected on the other side through a plastic snap.

9. The wearable drug extravasation warning and treatment device according to claim 7, wherein: The coupling groove (203) is integrally arranged in an ellipsoidal structure inside the pinch box (201), and its two ends extend to the outside of the pinch box (201). The infusion hose of the infusion set (1) passes through the gaps generated by the two ends of the coupling groove (203) and the pinch box (201).

Images