CN111437164A - IPC-like lower limb angiopathy and diabetic foot nursing device - Google Patents

Abstract

The invention provides a device design for nursing lower limb angiopathy such as varicosity and diabetic feet, which is characterized in that the crus of a patient are extruded by the rhythm of an air bag, and a user can independently set the inflation pressure and the air bag exhaust time of the air bag through a control panel, so that an arbitrary combined nursing scheme of different inflation pressures and different exhaust times can be realized, and the purposes of obtaining the personalized optimal curative effect of the user and realizing the optimal experience by the user according to the self experience or by combining with related monitoring technologies are realized.

Description

IPC-like lower limb angiopathy and diabetic foot nursing device

[ technical field ] A method for producing a semiconductor device

The invention belongs to the field of auxiliary treatment and rehabilitation nursing appliances for varicose vein lower limb angiopathy and diabetic foot.

[ background of the invention ]

Varicose veins and deep venous thrombosis are common lower limb vascular diseases in middle-aged and old people, and the life quality of patients is seriously influenced; the diabetic foot has the characteristics of high morbidity and high disability rate as a diabetic complication, so that the diagnosis, treatment and rehabilitation of the diabetic foot are concerned. Vasculopathy of lower limbs and feet is one of main pathogenesis of the diabetic feet, and the insufficient blood supply of foot tissues can cause symptoms such as ulcer and gangrene, and is an important reason for amputation of diabetic foot patients. The lower limb is extruded to improve the hemodynamic index of lower limb pathological blood vessels, improve the blood perfusion of foot microcirculation and be beneficial to the recovery of patients with lower limb angiopathy and diabetic foot. At present, nursing devices for improving blood circulation by squeezing lower limbs mainly comprise three types of devices, namely an intermittent pneumatic compression device (IPC for short), an air wave therapeutic apparatus (CN201520167311.6, CN201510497598.4) and an external counterpulsation therapeutic apparatus (CN201610864708.0, CN 201610064643.1). Although existing IPC-type care devices have all been used in clinical and rehabilitation therapy for diabetic feet, they have some significant drawbacks: (1) limited improvement in foot blood perfusion levels; (2) feedback control is not carried out according to the human body hemodynamics signal, so that the improvement effect of the foot hemodynamics of different patients under different conditions is difficult to ensure; (3) parameters of a pressurizing strategy and a charging and discharging time sequence are fixed, and the treatment effect is difficult to guarantee due to the lack of sufficient hemodynamic research basis.

The IPC nursing device products on the market at present are subjected to iterative upgrade for many years and often have the characteristics of low energy consumption, high integration, portability and easy use. However, although this type of device has achieved good results in the clinical treatment of some vascular diseases, the sources of the parameters used in its design have been taught and lack sufficient evidence support. IPC products in the market are usually designed to enable the device to conduct 2-4 times of rapid (inflation and deflation time is less than 0.5s) air bag extrusion within one minute, and the highest pressure is 65-120 mmHg. The design is based on observations from Gaskell and Parrott in 1978 (Gaskell P, Parrott JC. the effect of a mechanical venous pump on the circulation of the effect in the presence of the aromatic object 1978; 146: 583-92.). According to this document, the venous vessels are slowly engorged within 15s after the release of the compression, and increasing the frequency of the compression is not beneficial to enhancing the engorgement response. The authors believe that with higher compression frequencies, the congestion response is compromised by poor limb flow due to balloon inflation compression.

In a 2000-year report, however, Delis et al tried to find out the optimum parameters for IPC (Delis KT, Azizi ZA, Stevens RJ, Wolfe JH, Nicolaides AN. Optim intermitt pneumatic compression. Eur J Vasc Endovasc Surg 2000; 19: 19-9.) the proposed optimum excitation parameters range was 120mmHg to 140mmHg for the air bag pressure combined with three to four times per minute of the compression frequency (higher frequency of compression stimulation failed to do the experiment). Sheldon et al topic is in BD 2012, faster compression frequency (2 sec. 3 sec.) compared to the traditional compression frequency (3 sec. 17 sec.) the compression frequency in vascular graft induced vascular graft (Twy) was found to increase Twy expression of the blood vessel graft II. Twy expression of the tissue strain II. Twy expression of the publication No. Twy expression of the expression of blood vessel graft II.

In conclusion, the problems of excessive textbooks on the pressurization pressure and treatment parameters and the unclear related treatment effect mechanism of the existing IPC-type nursing devices limit the popularization and application of the IPC-type nursing devices in the clinical treatment and rehabilitation of some ischemic limb diseases (such as diabetic feet).

[ summary of the invention ]

The invention provides a device design for nursing lower limb angiopathy such as varicosis and diabetic foot. The intermittent pneumatic compression device with the parameters capable of being adjusted by a user independently comprises adjustable parameters such as pressurization pressure, exhaust time and the like, so that the aim of optimizing the nursing effect is fulfilled.

The purpose of the invention is realized by the following technical scheme:

a set of IPC type nursing device that is used for limbs periodic compression: the air-conditioning system comprises an embedded control system, an air pump, an electromagnetic valve inflation and deflation loop and an air bag, and is provided with a user interaction panel. The embedded control system is used for controlling the power-on and power-off of the air pump and the opening and closing of the electromagnetic valve. The power of the air pump is matched with the volume of the air bag, so that the pressure in the air bag can be charged to 20 kilopascals within 2 seconds. The solenoid valve should withstand a pressure of 30 kpa without leakage. Nursing parameters are set through a user interaction panel, the highest pressure of the air bag is recommended to be within the range of 15 kilopascals to 30 kilopascals, the air exhaust time of the air bag is recommended to be within the range of 0.5 seconds to 16 seconds, and the parameters can be set according to the user experience.

[ description of the drawings ]

FIG. 1 is a schematic diagram of an IPC-like care device;

fig. 2 is a prototype of a product of an IPC-like care apparatus.

[ detailed description ] embodiments

The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.

As shown in figure 1, an IPC type nursing device can be used for measuring and obtaining optimal nursing parameters of a patient and executing nursing operation according to the method of the invention and can be divided into 1. a user interaction panel comprises an eight-bit common cathode nixie tube display screen, a L ED indicator lamp and a button switch, wherein the display screen can display nursing parameters and real-time air pressure, a L ED indicator lamp is used for indicating the displayed items and the working state of the device, and buttons can be used for switching the displayed items and adjusting the nursing parameter range, 2. an embedded control system adopts an STM32F103C8T6 single chip microcomputer and a built-in control algorithm, uses information obtained by the user interaction panel to adjust the nursing parameters and real-time adjust the control parameters according to the information of an air pressure sensor, 3. an air pump adopts two sets of DC12V micro diaphragm pumps, 4. an inflation and deflation loop adopts a plurality of DC6V micro three-position three-way normally-open type electromagnetic valves, three-way electromagnetic valves are used for obtaining three working states of air bag pressure maintenance, air bag inflation and air bag working state by switching the state of the electromagnetic valve, and comprises a DC12 kPa/50 kPa pressure transmitter, a cuff is positioned at the outlet of the air bag, a real-time air bag, an air bag can be used for collecting data of the air bag, and is.

The idea of the device embedding algorithm is as follows: 1. when the air bag is in standby, parameters such as the highest pressure of the air bag, the exhaust interval time, the nursing time and the like can be adjusted through the user interaction panel, the electromagnetic valve inflation and deflation loop is in an air bag air exhaust state, the pressure of the air bag returns to zero, and if the pressure meets the condition, the air pump is powered off; 2. nursing is started, an air bag inflation stage is started, and an electromagnetic valve inflation and deflation loop is in an air bag inflation state until the air bag pressure reaches a set value; (optional) entering an air bag pressure maintaining stage, wherein an electromagnetic valve inflation and deflation loop is in an air bag pressure maintaining state, and an air pump is communicated with the atmosphere until the time reaches a set value; 4. entering an air bag exhaust stage, enabling an electromagnetic valve inflation and deflation loop to be in an air bag air exhaust state, continuously timing, entering the next inflation period if the time reaches a set value, and enabling the electromagnetic valve inflation and deflation loop to enter an air bag pressure maintaining state until the time reaches the set value and the air bag pressure returns to zero; 5. when the nursing time is over or the nursing is manually stopped, the electromagnetic valve air charging and discharging loop is in an air bag air discharging state, so that the air bag pressure returns to zero, and if the pressure meets the condition, the air pump is powered off and enters a standby state.

The device comprises the following steps: (1) the user is in a sitting posture, the feet are prevented from being suspended, clothes of the lower leg part are removed or only close-fitting clothes are kept, and smooth blood circulation of the lower limb is ensured; (2) the air bag of the device is covered near the gastrocnemius muscle of the crus of the user, and the tightness degree of the air bag is preferably that the air bag can extend into two fingers; (3) nursing parameters are set through a user interaction panel, the pressure of the air bag is recommended to be within the range of 15 kilopascals to 30 kilopascals, the air exhaust time of the air bag is recommended to be within the range of 0.5 seconds to 16 seconds, and the parameters can be set according to the user experience; (4) initiating a care process through a user interaction panel; (5) waiting for the nursing process to be finished, automatically stopping the device, and taking off the air bag of the leg of the user; (6) cleaning the device, finishing the use after finishing the arrangement and recovery.

Claims (5)

1. A low limbs angiopathy and diabetes foot nursing device of similar IPC which characterized in that: the device is provided with an embedded control system, an air pump, an electromagnetic valve inflation and deflation loop and an air bag, and is provided with a user interaction panel, so that a user can set the pressurization pressure and the exhaust time independently or automatically by a built-in algorithm according to the acquired hemodynamics signals of the target organ, and the device is used for rehabilitation nursing of lower limb angiopathy such as varicosis and diabetic foot.

2. An IPC lower limb angiopathy and diabetic foot care device as described in claim 1, characterized in that: the user is recommended to carry out rehabilitation nursing in a sitting position, the air bag pressure is recommended to be in a range of 15 kilopascals to 30 kilopascals when the user sits, the air bag pressure is set automatically by the user on a user interaction panel according to self experience, or a built-in algorithm is automatically set according to collected target organ hemodynamic signals.

3. An IPC lower limb angiopathy and diabetic foot care device as described in claim 1, characterized in that: the air bag exhaust time is recommended to be between 0.5 and 16 seconds, and is set by a user on a user interaction panel according to the user experience, or is automatically set by a built-in algorithm according to the acquired hemodynamics signals of the target organ.

4. An IPC lower limb angiopathy and diabetic foot care device as in claim 1, characterized by: the air pump and the air bag are matched in a mode selection mode, and the pressure in the air bag can be inflated to 20 kilopascals within 2 seconds under the condition that the exhaust passage is closed.

5. An IPC lower limb angiopathy and diabetic foot care device as described in claim 1, characterized in that: the embedded control system is used for controlling the power-on and power-off of the air pump and the opening and closing of the electromagnetic valve.

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