JP3107269U - Deep vein prevention device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a deep vein prevention device that is effective for prevention of deep vein thrombosis and blood circulation promotion and is convenient to carry.
An air pad having a gas passage and a plurality of magnetic bodies disposed on the gas passage, the open end of the gas passage being connected to a direction change valve via a vent pipe, and the direction change valve Is connected to charging and exhausting means through another vent pipe to form a gas passage for filling and exhausting the gas passage of the air pad, and a separate control circuit is provided to provide the direction change valve. And a deep vein thrombus prevention device that controls the charging and exhausting means.
[Selection] Figure 1

Description

The present invention relates to a venous thrombus prevention device that promotes blood circulation to prevent deep vein thrombosis.

  Patients who have undergone surgery or anesthesia, those who have been bedridden for a long time, other malignant diseases, limb amputation, loss of motor function of limbs, etc., patients in coma, Or if a healthy person has to keep the same posture for a long time, such as riding on an airplane for a long time, a kind of deep vein thrombosis easily occurs. That is, it is a deep vein thrombotic symptom of the thigh and / or pelvis, and such an example is often recognized clinically. Such thrombosis may be due to lack of movement of the limb muscles due to lack of movement of the lower limb muscles, damage to the local blood vessels, or too low viscosity of the lower body blood. It occurs as a cause. In this case, there are many clinical cases where thrombosis is transferred from the lower body to the lungs, causing pulmonary thrombus and causing death or obstructing blood circulation of blood vessels, resulting in life-threatening symptoms. .

  Speaking from the essence of menstruation, since human beings walk upright, the lower limb veins tend to bend and swell relatively. For this reason, the effect of the venous valve in the deep veins of the lower limbs, slowing of the blood flow, and delay are easily caused. When a woman becomes pregnant, the lower limb veins become loose and dilate due to changes in hormonal balance and increased blood volume. If such symptoms continue, deep vein thrombosis easily occurs.

  In order to improve or prevent the above-mentioned symptoms, a smooth circulation of blood must be maintained. In addition to heart pulsation, muscle contraction is also necessary for blood to flow. The lower limb has more than half of the human muscles. Therefore, it has an important function called a second heart. This is why it is generally said that the aging phenomenon comes from the foot.

  In clinical or specific living environment, in addition to promoting blood circulation with drugs, prevent vaginal thrombosis with auxiliary means of sputum, or control the occurrence and development of such symptoms, The purpose of treatment needs to be achieved.

  The so-called slow pressure therapy is “Compression on Fibriolysis in Man” described above. In the paper, the author states that he has made the following discovery. That is, in patients who have undergone surgery, the dissolution of fiber protein in the body is usually suppressed, and the pressure of air in the gap caused by the action of the lower limbs stimulates the dissolution of fiber protein. The conclusion that the author has obtained through experimentation is that an effective and safe method of preventing venous thrombosis after surgery is to give the calf an air pressure effect during the surgery and prognosis.

  Further, from the viewpoint of blood flow change, blood having viscosity reaches a certain level of shear stress, and the effect of shearing and dilution can be obtained for the first time. In order to activate the flow of blood staying in a deep vein embedded in a deep part of the thigh, a relatively high shearing force is required. Venous blood vessels have the physiological feature of a unidirectional valve. Therefore, in order to maintain the blood circulation, a relatively high shearing force along the axial direction of the blood vessel is required.

  The conventional technology that uses air pressure to prevent deep vein thrombosis is restricted by the structure of the air bag, so that the air bag is inflated to apply vertical pressure to the body part. Can only be achieved. For example, U.S. Pat. S. Pat. No. 6290662 provides a portable pressure device, but can only provide monotonous vertical pressure. Such a monotonous vertical pressure can only make the blood in the deep veins and shallow veins retain high viscosity and can accommodate between two or more venous valves. It is difficult to shear and pulsate biological blood flow in the interior. Therefore, the effect is not clear, and there is a possibility that the purpose of sufficiently circulating the blood cannot be achieved. And since the volume of the whole airbag is large, the duration of the predetermined pressure value obtained by filling with air becomes long. That is, it becomes difficult to achieve the purpose of flexibly applying the action of pressure in various forms.

  Moreover, it can be proved from many literatures that magnetism gives muscle stimulation of many parts of the human body and acts on the nerve. The effect of stimulating the nerves of muscles such as the thigh with magnetism has also been directly demonstrated. For example, US Pat. No. 6,213,933 was published on April 10, 2001. Vernon Wen-Hau Lin, California, the applicant of the patent, said in the patent that magnetic stimulation has a clear promoting effect on the coagulation and dissolution of human blood and the dissolution of fiber protein in the blood. . The current induced by the change in the magnetic field stimulates nerves in the body. For example, when twitching contraction of the thigh muscle group occurs in the thigh ribs and sciatic nerve, clear fiber protein dissolution occurs, and fiber protein dissolution activation in the blood continues to increase, Efficiently prevents deep vein thrombosis.

However, to date, there are no portable devices that use the magnetic stimulation effect of the prior art. In the above-mentioned patent, when a stimulus is applied to the surface of the human body, a relatively large table is required. In addition, there is no technology to enhance the prevention and treatment effect of deep vein thrombosis with a device utilizing the action of atmospheric pressure. A device having functions similar to these in the prior art has a limited effect whether it is a portable type or not. That is, the strength and frequency of action for preventing such symptoms with these conventional techniques cannot adequately satisfy the physiological field-back characteristics between the deep vein and its surrounding nerves and muscle tissue. The conventional system in which the functions of the respective devices operate is monotonous and its effect is also unsuitable. The so-called portable method is convenient for carrying, but the efficient action of the air bag that applies pressure is limited in volume.
United States Patent No. 6,290,662 United States Patent No. 6213933

  As described above, in order to control blood circulation in order to prevent deep vein thrombosis, a device that can adjust the physiological pulsation function of the deep vein and is portable is not found in the prior art. Accordingly, an object of the present invention is to provide a deep vein prevention device that is effective in preventing deep vein thrombosis and promoting blood circulation and is convenient to carry.

Therefore, the present invention is a result of intensive research in view of the drawbacks found in the prior art. As a result, the present invention comprises a gas passage and an air pad having a plurality of magnetic bodies disposed on the gas passage. Is connected to a direction change valve through a vent pipe, and the direction change valve is connected to an exhaust means through another vent pipe to fill and exhaust gas into the gas passage of the air pad. Based on this knowledge, we focused on the problem that can be solved by the deep vein thrombus prevention device configured to control the direction change valve and the charging / exhausting means by providing a separate control circuit. The present invention has been completed.
The deep vein thrombus prevention device according to this device will be specifically described below.

The deep vein thrombus prevention device according to claim 1 comprises an air pad having a gas passage and a plurality of magnetic bodies disposed on the gas passage,
The open end of the gas passage is connected to a direction change valve through a vent pipe, and the direction change valve is connected to an exhaust means through another vent pipe and connected to the exhaust means to gas to the gas passage of the air pad. Forming a gas passage for filling and exhausting
A control circuit is provided to control the direction changing valve and the charging / discharging means.

The deep vein thrombus prevention device according to claim 2 is formed by attaching the inelastic outer layer and the flexible inner pad to the air pad in claim 1, and the inside thereof is parallel to each other or Z Forming a gas passage constituting a letter shape, the gas passage is a single passage, two passages, or a plurality of passages, and the width of each gas passage is 50 to 300 mm, A plurality of minute magnetic bodies are uniformly disposed on the surface of the gas passage, and the magnetic field strength of each of the minute magnetic bodies is set to 2 to 120 gauss. A space is provided, and a space of 10 to 30 mm is provided on the left and right.

A deep vein thrombus prevention device according to claim 3 is the micro-air pump, the pressure sensor, the pressure reducing valve, and the direction changing valve in which the charging / exhausting means in claim 1 is connected to the vent tube via a multi-connection joint. The gas pressure input to the charging and exhausting means is set to a maximum value of 20 to 300 mmHg.

In the deep vein thrombus prevention device according to claim 4, the control circuit according to claim 1 is operated by a low-voltage direct current having a voltage of 2.5 to 6 V, and an oscillation circuit, an amplifier circuit, an encoder, a motion sensor, And the control switch is electrically connected.

The deep vein thrombus prevention device according to claim 5 is packaged in the control circuit box with the direction changing valve and the charging / exhausting means in the claim, and the circuit for controlling the direction changing valve and the charging / exhausting means. .

The deep vein thrombus prevention device of the present invention improves blood circulation and has an effect on prevention and control of deep vein thrombus.

In addition, the deep vein thrombus prevention device of the present invention is convenient to carry and has an effect that various aspects of the device can be changed.

The present invention provides a venous thrombus prevention device that promotes blood circulation to prevent deep vein thrombosis, and includes an air passage and a plurality of magnetic bodies disposed on the gas passage. The gas passage of the air pad is provided with a pad, and the open end of the gas passage is connected to a direction change valve via a vent pipe, and the direction change valve is connected to an exhaust means through another vent pipe. A gas passage for filling and exhausting the gas is formed, and a separate control circuit is provided to control the direction change valve and the charging and exhausting means.
A specific example will be given and described below in order to describe the structure and features of the device for preventing venous thrombus in detail.

  As shown in FIGS. 1, 2, and 3, the air pad 4 is formed by attaching an inelastic outer layer 13 and a flexible inner pad. In the interior, gas passages that are parallel to each other or formed in a Z-shape are formed. The gas passage may be a single passage, two passages, or a plurality of passages. Each gas passage has a width of 50 to 300 mm, and a plurality of minute magnetic bodies are uniformly disposed on the surface of the gas passage. The intensity of the magnetic field of each minute magnetic material is 2 to 120 gauss. In addition, a gap of 10 to 30 mm is provided between the respective magnetic bodies, and a gap of 10 to 30 mm is provided on the left and right.

The charging / exhausting means includes a ventilation pipe 5, a micro air pump connected via a multi-joint 7, a pressure sensor, a pressure reducing valve, and a direction changing valve. The maximum pressure of the gas pressure input to the charging and exhausting means is 20 to 300 mmHg. The gas passage 1 communicates with the direction change valve 6, which communicates with the micro air pump 8, the pressure sensor 9, and the pressure reducing valve 10 through the vent pipe 5 and through the multi-joint 7. Connect to each other. The micro air pump 8, the air sensor 9, the pressure reducing valve 10, and the direction changing valve 6 are connected to each other via a control circuit 11, and the control circuit 11 is connected to a power source provided by the user via a power switch 12.

  When the micro air pump 8 fills the gas passage 1 or 3 with gas and reaches a predetermined pressure value, the pressure sensor 9 issues a signal to the control circuit 11. The control circuit 11 controls the direction change valve 6 based on the signal to change the expected filling by the micro air pump 8 in another gas passage. When two air passages are provided in the air pad 4, the pressure can be reduced by the direction change valve 6. When more than two gas passages are provided in the air pad 4, the pressure reducing valve 10 is added on the gas passage, and the pressure is gradually reduced by the control of the control circuit 11 to maintain the pressure. The depressurization of the gas passage 1 or the gas flow passage may be completed by spontaneously leaking pressure after the gas filling period.

  The circuit that drives the micro air pump 8 and other units that are activated by air may be a control circuit 11 that includes an oscillator configured by a programmable switch and a general-purpose integrated circuit, a NAND gate, and an output circuit. The control circuit 11 controls the adjustment of the air filling / exhausting speed in a programmable manner, and controls the sequence of air filling / exhausting into the gas passage and the operation cycle of the entire apparatus.

  In order to extend the life of the battery, a sensor that senses limb movement (muscle contraction) is provided. When the user walks by such a sensor or performs other activities, a signal is issued to stop the operation of the entire apparatus.

  In order for the device to meet physiological requirements, a unit having a function of detecting blood pressure and pulse may be added. The data and parameters may be coupled to the control circuit to rely on the method of operating the device.

  FIG. 4 is a block diagram when the above-described apparatus is operated.

  FIG. 5 discloses a circuit of the apparatus. The control circuit employs a low-voltage direct current having a voltage of 2.5 to 6 V, and is configured by electrically connecting an oscillation circuit, an amplifier circuit, an encoder, a motion sensor, and a control switch. In such a circuit, the load RL is driven by a control circuit based on a 555 integrated circuit IC and a set of programmable switches (K1, K2, K3,... Ki), a NAND gate, and an output circuit. The load RL may be a micro air pump or a relay (the micro air pump is driven by the relay). When K is turned off, the output terminal of the integrated circuit becomes a high electrical level, passes through the resistor R4 and the inverter 1 that limit the current, and triggers the output terminal of the NAND gate 2 of the IC1. In this case, if the pressure does not reach a predetermined value and the position of P is at a high electrical level, the control circuit output terminal T becomes saturated and conductive, and the load RL is activated.

  When the load RL is operated for a predetermined time and the pressure reaches a predetermined value, the position of P becomes a low electrical level, the position of T in the control circuit is disconnected, and the operation of the load RL is stopped. The power supply Vcc that provides the voltage may be a dry battery set. A good circuit can extend the battery usage demand by several cycles.

  By changing the resistance value of the programmable switch based on the necessity of the circulation cycle, the gas filling / exhausting speed can be changed from once per minute to once every tenths.

  In the course of operation, the micro air pump can be activated to fill the gas passage with gas and to achieve a pressure level similar to increasing venous circulation. The pressure can be adjusted to the maximum value by appropriate adjustment or correction of the circuit. The circuit of the present invention achieves a high-speed and accurate gas passage exhaustion by a controllable direction change valve, and can achieve a system for flexibly corresponding to a plurality of gas passages. If necessary, the pressure in the gas passage may be maintained for a predetermined time.

  The operation of the entire apparatus according to this device will be described with reference to FIG. At start time 18, the device is turned on and the frequency is adjusted by the programmable switch disclosed in FIG. At the first time 17, the micro air pump performs the primary operation 20 and performs the expected filling of the gas passage. When the pressure sensor senses a predetermined maximum pressure value (after the time of the primary run 20), the circuit calculates the time and the first time delay period 14 begins. At this time, the direction change valve and the pressure reducing valve operate in cooperation with each other to maintain and reduce the predetermined pressure in the gas passage.

  When the delay time 14 ends, the time calculation ends and the second time 19 is entered. The micro air pump performs the secondary operation 15. At the start of the second time 19, it has a plurality of gas passages, but the control circuit having the encoder selects the gas passage where the direction changing valve fills the gas, and the micro air pump is energized to fill the gas Begin. In this way, the gas passages for filling the gas are changed in order, all the gas passages to be filled with the gas in the air pad are filled with the gas, and after one round, the next operation cycle is entered until the apparatus is turned off. The pressure release of each gas passage and the maintenance of a predetermined pressure value are achieved by driving the pressure reducing valve by a control circuit including an encoder, and by coordinating the operation of the direction change valve and its operation.

  In an extreme example, when all the gas flows in the air pad are filled with a predetermined program and a predetermined pressure value is achieved, the pressures may be released one by one. Also, a more complicated programming circuit or a microprocessor is used to fill the gas in each gas passage, the time to release the pressure, or the period between expected filling and pressure relief It can be beneficial for a specific treatment by adjusting to a given time parameter that needs to be changed, or by adjusting it all together, or it can provide a power saving effect, or both effects can be obtained simultaneously it can.

  In the embodiment disclosed in FIG. 7, the air pad 4 having a plurality of gas passages is applied to the calf portion and tightly fastened by a fastening portion 21 such as a hook-and-loop fastener. The gas passage 1 or 3 is connected to the control circuit box 22. The circuit of the direction change valve, the charge / exhaust means, the direction change control valve, and the charge / exhaust means is packaged in the gas passage and the control circuit box 22. A frequency adjustment dial and a power switch are provided at predetermined positions on the control circuit box 22, and the frequency is adjusted by operating the frequency adjustment dial. When the power is turned on by the power switch, the frequency adjustment dial is provided in the control circuit box 22. In addition, the micro air pump sequentially fills and evacuates the respective gas passages, and a combined action is obtained for the calf portion by the wave-like pressure and the magnetism of the magnetic body 2.

  FIG. 8 discloses another embodiment of the present invention. According to the drawings, an air-pad having a plurality of gas passages is formed so as to exhibit a shoe structure, and is in contact with the sole of the user's foot and the side of the foot in the shoe 24. The micro air pump, its gas passage, and the circuit control box 22 are fixed to the upper surface of the shoe so that the vent pipe 5 and the gas passage 1 communicate with each other.

  FIG. 9 discloses another embodiment of the present invention. According to the drawings, an air pad having a plurality of gas passages is fixed to the trousers and is a part constituting the trousers. The gas passages 1 are configured to contact the buttocks, the thighs, and the calf portions, respectively. When considering the problem of the contact position and the upper limit of the effect, three air pipes 5 pass through the air pads that contact the buttocks, the left thigh and the calf, and the right thigh and the calf, respectively. Driven by the three gas passages and the control circuit box 22. As can be seen from the above, if the parameters of the air power unit can satisfy the required power requirements, these are integrated, and the position of the magnetic body 2 to be attached to the gas passage is also not shown. It can be. When using, the device is operated at the corresponding position by tightening tightly at the fastening portion 21 and turning on the power.

  The above is a preferred embodiment of the present invention, and does not limit the scope of implementation of the present invention. Accordingly, any modifications or changes that can be made by those skilled in the art, which are made within the spirit of the present invention and have an equivalent effect on the present invention, belong to the scope of the utility model registration claim of the present invention. Shall.

It is explanatory drawing which showed the connection of the main members of the apparatus by this device. It is sectional drawing along the AA line in FIG. FIG. 3 is an enlarged view of a cross section of FIG. 2. It is a block diagram showing the action | operation of the apparatus by this device. It is a circuit diagram of the apparatus by this device. It is explanatory drawing which showed the operation | movement of pressurization and pressure reduction of the apparatus by this device. It is explanatory drawing of the aspect which provides the apparatus by this invention in the part of a calf. It is explanatory drawing of the aspect which provides the apparatus by this invention in shoes. It is explanatory drawing of the aspect which provides the apparatus by this device in pants.

Explanation of symbols

1, 3 Gas passage 2 Magnetic body 4 Air pad 5 Vent pipe 6 Direction change valve 7 Joint 8 Micro air pump 9 Pressure sensor 10 Pressure reducing valve 11 Control circuit 12 Power switch 14 Delay time 15 Secondary operation 16 Second delay time 17 1st time 18 Start time 19 2nd time 20 Primary operation 21 Fastening part 22 Control circuit box 23 Calf 24 Shoes

Claims (5)

Comprising an air pad having a gas passage and a plurality of magnetic bodies disposed on the gas passage;
The open end of the gas passage is connected to a direction change valve through a vent pipe, and the direction change valve is connected to an exhaust means through another vent pipe and connected to the exhaust means to gas to the gas passage of the air pad. Forming a gas passage for filling and exhausting
A deep vein thrombus prevention device characterized in that a control circuit is provided to control the direction changing valve and the charging / discharging means.   The air pad is formed by adhering an inelastic outer layer and a flexible inner pad, and a gas passage that is parallel to each other or forms a Z-shape is formed inside the air pad. One passage, two passages, or a plurality of passages, and the width of each gas passage is 50 to 300 mm, and a plurality of minute magnetic bodies are uniformly formed on the surface of the gas passage. The magnetic field strength of each minute magnetic body is set to 2 to 120 gauss, and each magnetic body is provided with an interval of 10 to 30 mm vertically and 10 to 30 mm on the left and right. The deep vein thrombus prevention device according to claim 1. The charging and exhausting means includes a micro air pump connected to the vent pipe via a multi-connection joint, a pressure sensor, a pressure reducing valve, and a direction changing valve, and is input to the charging and exhausting means. The deep vein thrombus prevention device according to claim 1, wherein the gas pressure is set to a maximum value of 20 to 300 mmHg. The control circuit is configured to operate by a low-voltage DC current having a voltage of 2.5 to 6 V, and to electrically connect an oscillation circuit, an amplifier circuit, an encoder, a motion sensor, and a control switch. The deep vein thrombus prevention device according to claim 1, wherein the device is a deep vein thrombus prevention device.   2. The deep vein thromboprophylaxis according to claim 1, wherein the direction changing valve and the charging / exhausting means and a circuit for controlling the direction changing valve and the charging / exhausting means are packaged in a control circuit box. apparatus.

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