KR-20260066535-A - Lower limb compression device and compression method thereof

KR20260066535AKR 20260066535 AKR20260066535 AKR 20260066535AKR-20260066535-A

Abstract

The present invention provides a device for compressing a limb to improve blood circulation and a method for compressing a lower limb using the same. The limb compression device comprises: first to N air cells (N is a natural number greater than or equal to 2) arranged sequentially along the longitudinal direction of the limb from the tip of the limb toward the body; a pressure regulating unit capable of pressurizing by injecting air into the N air cells and depressurizing by discharging air from the air cells; and a control unit for controlling the operation of the pressure regulating unit. The N air cells are divided into a first cell group comprising one or more air cells arranged close to the tip of the limb and a second cell group arranged closer to the body than the first cell group. The control unit performs an overpressure control that pressurizes the first cell group to an overpressure and then depressurizes it, followed by sequential pressurization control that pressurizes the first cell group and then pressurizes the second cell group, and then depressurizes both the first cell group and the second cell group.

Inventors

이기원
김가은
박순희
전성경

Assignees

주식회사 세라젬

Dates

Publication Date: 20260512
Application Date: 20241104

Claims (20)

First to Nth air cells arranged in order from the tip of the limb toward the body along the longitudinal direction of the limb; A pressure regulating unit capable of pressurizing by injecting air into N air cells and depressurizing by discharging air from the air cells; and A limb compression device comprising: a control unit that controls the operation of the above-mentioned pressure regulating unit; The N air cells are divided into a first cell group comprising one or more air cells positioned close to the foreskin of the limb, and a second cell group positioned closer to the body than the first cell group. A limb compression device, wherein the control unit performs sequential pressure control by pressurizing the first cell group to an excess pressure and then depressurizing it, followed by pressurizing the first cell group, then pressurizing the second cell group, and then depressurizing the first cell group and the second cell group. (However, the above N is a natural number greater than or equal to 2)
In claim 1, The above pressure regulating unit is a limb compression device capable of independently injecting air into each of the N air cells.
In claim 1, The above pressure regulating unit is a limb compression device capable of independently discharging air from each of the N air cells.
In claim 1, A limb compression device in which the above excess pressure is greater than the above sequential pressurization pressure.
In claim 1, A limb compression device in which the above sequential pressure gradually decreases from the tip of the limb toward the body.
In claim 1, The above-mentioned excess pressure control is a limb compression device that simultaneously pressurizes air cells belonging to the first cell group or sequentially pressurizes from the tip of the limb toward the body.
In claim 1, A limb compression device in which the excess pressure applied to each air cell belonging to the first cell group in the above excess pressure control corresponds to each other.
In claim 1, The above sequential pressure control is a limb compression device that sequentially pressurizes air cells belonging to the first cell group from the tip of the limb toward the body, and sequentially pressurizes air cells belonging to the second cell group from the tip of the limb toward the body.
In claim 1, A limb compression device in which depressurization is performed after pressurizing the first cell group to an excess pressure, at least until the pressure of the air cell of the first cell group becomes lower than the sequential pressurization pressure of the air cell.
In claim 9, A limb compression device in which, after pressurizing the first cell group to an excess pressure, the depressurization is performed until the pressure of the air cell of the first cell group is substantially equivalent to atmospheric pressure.
In claim 1, A limb compression device in which depressurization is performed after pressurizing the first cell group to an excess pressure, by simultaneously depressurizing the air cells belonging to the first cell group, depressurizing in a direction from the air cells placed closer to the body among the air cells belonging to the first cell group toward the air cells placed further away, or sequentially from the air cells placed at the lower extremity among the air cells belonging to the first cell group toward the body.
In claim 1, A limb compression device in which the depressurization performed in the above sequential pressure control is performed until at least the release pressure of the air cell where the depressurization is performed is lower than the next sequential pressure of the sequential pressure of the air cell.
In claim 12, A limb compression device in which the depressurization performed in the above sequential pressure control is performed until at least the release pressure of the air cell where the depressurization is performed is lower than the last sequential pressure.
In claim 13, A limb compression device in which the depressurization performed in the above sequential pressure control is achieved up to a pressure in which the release pressure of the air cell where the depressurization is performed substantially corresponds to atmospheric pressure.
In claim 1, A limb compression device in which the depressurization performed in the above sequential pressure control is performed after pressurizing the first cell group and then pressurizing the second cell group.
In claim 1, A limb compression device in which the depressurization performed in the above sequential pressure control is performed sequentially from the tip of the lower limb toward the body while pressing the first cell group and then pressing the second cell group.
In claim 1, The above control unit is a limb compression device that alternately repeats the above overpressure control and sequential pressure control multiple times.
In claim 1, It further includes a pressure intensity input section; and A limb compression device in which at least one of the excess pressure and the sequential pressure increases as the input compression intensity increases.
In claim 18, A limb compression device in which the above sequential pressurization pressure increases, such that the pressure applied to at least one of the N air cells increases.
In claim 18, A limb compression device in which the above sequential pressurization pressure increases, such that the pressure applied to each of the N air cells increases.

Description

Lower limb compression device and compression method thereof The present invention relates to a device for compressing the lower limbs to improve blood circulation and a method for compressing the lower limbs. A lower limb compression device is used in the form of clothing for the purpose of preventing reduced blood circulation and deep vein thrombosis. The lower limb compression device is equipped with a plurality of pressure means arranged along the longitudinal direction of the lower limb. The above-mentioned pressurizing means may be implemented as an air cell that surrounds the perimeter of the lower limb. A compressor that supplies high-pressure air to inflate the lower limb compression device is connected to the air cell. When compressed air is supplied to the air cell surrounding the lower limb, a predetermined pressure can be applied to the corresponding area. The operation of the above compressor can be performed by a controller. The controller controls the compressor so that air can be supplied in a circulating manner to a plurality of air cells installed in the garment-shaped lower limb compression device. By using such a lower limb compression device to sequentially compress the lower limbs from the extremities toward the torso, it is possible to perform a treatment that moves blood accumulated in the extremities toward the body. However, in cases where there is a large amount of blood accumulated in the extremities of the lower extremities, where blood is concentrated in the extremities of the lower extremities, or in cases of a risk group for deep vein thrombosis, if the lower extremities are sequentially pressurized using the above circulatory pressurization method, there is a possibility that the following situations may occur. First, if the extremities of the lower limbs, where a large amount of blood is concentrated, are simply pressurized in a circulatory manner, the amount of blood returning in the reverse direction increases compared to the amount of blood pushed upward in the forward direction, thereby increasing the time required to exert the therapeutic effect of improving blood circulation. Next, as the volume of forcibly circulated blood increases, the likelihood of circulatory system issues, such as damage to blood vessels or congestion, also rises. Consequently, the patient receiving treatment may experience pain. However, if the pressurized pressure is lowered to prevent this, the time required for the blood circulation improvement effect to manifest increases. To reduce this phenomenon, one can consider increasing the number of air cells—that is, increasing the number of air cells while making the length of the lower limb covered by a single air cell shorter. However, as the number of air cells increases, the number of pneumatic hoses connected to each air cell and the number of various valves installed on each pneumatic hose also increase, and the control procedure of the controller becomes significantly more complex. FIG. 1 is a simplified drawing showing a lower limb compression device according to an embodiment of the present invention and a patient to wear it. Figure 2 is a drawing showing the patient of Figure 1 wearing a lower limb compression device. FIG. 3 is a diagram briefly illustrating a system in which a pressure regulating unit is connected to the air cells of a lower limb compression device of an embodiment via an air hose, and the pressure regulating unit is controlled by a control unit. FIG. 4 is a drawing showing the first cell group and the second cell group of air cells of the lower limb compression device of the embodiment. Figure 5 is a graph showing the pressure of air supplied to each air cell of the lower limb compression device. FIG. 6 is a flowchart illustrating a lower limb compression method using a lower limb compression device of an embodiment. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The present invention is not limited to the embodiments disclosed below, but can be modified and implemented in various different forms. The embodiments provided are merely intended to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention. Accordingly, the present invention should be understood not to be limited to the embodiments disclosed below, but to include all modifications, equivalents, and substitutions that fall within the technical spirit and scope of the present invention, as well as substituting or adding the configuration of any one embodiment with the configuration of another embodiment. The attached drawings are intended only to facilitate understanding of the embodiments disclosed in this specification, and the technical concept disclosed in this specification is not limited by the attached drawings; rather, it should be understood that they include all modifications, equival