CN204766405U - Supplementary backward flow gasbag of formula of pressurizeing piecemeal low limbs vein - Google Patents

Abstract

The utility model relates to a section-by-section pressurized lower extremity venous auxiliary return airbag, which can effectively solve the problem of poor venous return or thrombosis in the lower extremity. The technical solution is that the fan-shaped airbag is divided into several adjacent and closed separately The segmented airbags are equipped with pressure check valves between each segmented airbags. One end of the lowermost airbag is provided with an air inlet, which is connected to the compressed air pipeline. The uppermost airbag is equipped with a pressure sensor. The signal line of the sensor is protruded from one end of the airbag, and one end of each segmented airbag is provided with a vent port, and a miniature solenoid valve is connected outside the vent port, and all miniature solenoid valves are connected in parallel to the vent execution circuit. The utility model effectively overcomes the existing Some passive measures of the technology exert the same pressure on the lower limbs as a whole to squeeze and massage the defect, which is an innovation in the prevention and auxiliary treatment of poor venous return or thrombosis in the lower limbs.

Description

A segmental pressurized lower extremity venous auxiliary return air bag

technical field

The utility model relates to a medical device, in particular to a section-by-section pressurized lower extremity venous auxiliary reflux air bag, which is used for preventing and assisting in the treatment of poor venous return of lower extremities or thrombosis.

Background technique

The deep veins of the lower extremities are the main channels for the return of blood from the lower extremities. Deep vein thrombosis of the lower extremities is when a blood clot forms in this passage. In addition to blocking venous return and causing lower extremity edema, and destroying the structure and function of lower extremity veins and valves, the hazards can also cause pulmonary infarction and sudden death that is difficult to rescue if the thrombus falls off. Lower extremity deep vein thrombosis has become a common disease at home and abroad that endangers the health of the people. Slowing or even stopping of blood flow velocity in veins is one of the main causes of thrombosis. Normal people use the gastrocnemius muscle of the calf to promote the venous blood return of the lower limbs, so the gastrocnemius muscle is also called the gastrocnemius muscle pump. Some long-term bedridden patients and some people who maintain the same posture for a long time without moving their lower limbs are prone to deep vein thrombosis or varicose veins of the lower limbs due to the lack of gastrocnemius muscle pump. At present, drug or mechanical prevention and adjuvant treatment methods are widely used at home and abroad. In terms of mechanical prevention and adjuvant treatment methods, bedridden patients usually use lower extremity elevation to promote venous blood return, and active measures, allowing patients to use foot and ankle exercise equipment on the bed to strengthen the gastrocnemius muscle pump role. There are also some passive measures, such as strong elastic stockings, lower limb airbag air pressure massage, etc. Although these measures can play some effects, some of them are troublesome when used, and some make the patient very uncomfortable. Especially the passive measures mentioned above apply the same pressure on the lower limbs to squeeze and massage the patient, which makes the patient feel painful and uncomfortable. With little success. Therefore, it is very necessary to invent a device for the prevention and auxiliary treatment of poor venous return or thrombosis in the lower extremities.

Contents of the invention

In view of the above situation, in order to solve the defects of the prior art, the purpose of this utility model is to provide a step-by-step pressurized lower extremity vein auxiliary return air bag, which can effectively solve the problem of poor return of lower extremity vein or thrombosis.

The technical scheme solved by the utility model is to include a fan-shaped airbag and a main engine. The fan-shaped airbag is divided into several adjacent and respectively closed segmental airbags along the radial direction, and a pressure check valve is arranged between each segmental airbag. One end of the airbag is provided with an air inlet, and the air inlet is connected with the compressed air pipeline. A pressure sensor is arranged in the uppermost airbag, and the signal line of the pressure sensor extends from one end of the airbag. There is a miniature solenoid valve connected to the vent port, and all miniature solenoid valves are connected in parallel to the vent execution circuit, and the vent execution circuit, compressed air pipeline, and signal line are all connected to the host.

The utility model effectively overcomes the defects of some passive measures in the prior art that apply the same overall pressure on the lower limbs to squeeze and massage the lower limbs, and pressurizes and massages the lower limbs from bottom to top in order to promote the venous blood return of the lower limbs. Innovations in devices for the adjunctive treatment of poor venous return or thrombosis in the lower extremities.

Description of drawings

Fig. 1 is the structural front view of the utility model.

Fig. 2 is a schematic diagram of the connection relationship of the host internal circuit of the present invention.

Detailed ways

The specific embodiments of the present utility model will be described in further detail below in conjunction with the accompanying drawings.

As shown in Fig. 1-2, the utility model includes a fan-shaped airbag and a main engine. The fan-shaped airbag 1 is divided into several adjacent and closed segmental airbags along the radial direction, and a pressure check valve is arranged between each segmental airbag. 4. One end of the lowermost airbag is provided with an air inlet, and the air inlet is connected to the compressed air pipeline 5. A pressure sensor 8 is arranged in the uppermost airbag, and the signal line 8a of the pressure sensor 8 extends from one end of the airbag. One end of the section air bag is provided with an air release port, and the air release port is connected with a micro solenoid valve 7, and all the micro solenoid valves 7 are connected in parallel to the air release execution line 6, and the air release execution line 6, the compressed air pipeline 5, and the signal line 8a are all connected to the host machine 9 .

In order to ensure the use effect, the host machine 9 is composed of a micro-air pump 11, a controller 12 and a power supply 13, the micro-air pump 11, the deflation execution circuit 6, and the signal line 8a are all connected to the controller 12, and the compressed air pipeline 5 is connected to the micro-air pump 11. Connected, the controller 12 is connected with the power supply 13.

The controller is a program controller or an 8051 single-chip controller.

The flow rate of the micro air pump is 0.5-3L/min, and the working pressure of the fan-shaped air bag is 180-280mmHg (24 kPa-37 kPa).

Both sides of the fan-shaped airbag 1 are provided with Velcro 2, and the suede side 3a of the Velcro 2 is wider than the hook side 3b.

A hose 10 is sleeved on the deflation execution line 6, signal line 8a, and compressed air line 5, and placed on the side of the suede edge 3a.

The application of the utility model is to wrap the fan-shaped airbag on the patient's lower limbs (such as the calf, of course, the product can also be extended to the thigh), fasten the Velcro on both sides, power on the host and start it, and the air pump first The lower airbag is pressurized and inflated. When the lowermost airbag reaches a certain pressure, the pressure check valve opens to ventilate, and the adjacent airbags start to be pressurized and inflated, so that they are pressurized and inflated one by one. When the air pressure of the uppermost airbag reaches a certain pressure, the pressure sensor sends a signal feedback To the controller, the controller sends a deflation execution signal to each deflation valve, and at the same time closes the air pump. This state is delayed for a while, the deflation valve is closed, and the air pump is started, and so on until the host is closed. The controller can adjust the delay time of the deflated state and the flow rate of the inflated air flow. The knob is set on the host, and the medical staff or patients can select the appropriate value through the knob on the host.

The segmented air bag of the utility model is inflated and pressurized step by step from bottom to top, which really helps the venous blood of the lower limbs to run upwards and achieve the effect of normal backflow. At the same time, the utility model has a simple, lightweight, novel and reasonable structure, and the host machine can also be miniaturized, so it can be carried around without requiring the patient to stay in bed, and the patient can perform some normal activities. The innovation on the device has good economic and social benefits.

Claims (6)

1. an adding pressure type veins of lower extremity auxiliary reflux air bag piecemeal, comprise fan-shaped air bag and main frame, it is characterized in that, fan-shaped air bag (1) prolongs radial direction and is divided into several adjacent and each self-enclosed segmentation air bag, pressure check valve (4) is provided with between each segmentation air bag, one end of lowermost air bag is provided with air inlet, air inlet is connected with compressed-air line (5), pressure transducer (8) is provided with in uppermost air bag, the holding wire (8a) of pressure transducer (8) is stretched out by air bag one end, leakage port is provided with in one end of each segmentation air bag, leakage port is externally connected with miniature electromagnetic valve (7), all miniature electromagnetic valves (7) are all parallel to lose heart and perform circuit (6), lose heart and perform circuit (6), compressed-air line (5), holding wire (8a) is all connected with main frame (9).

2. the veins of lower extremity of adding pressure type piecemeal auxiliary reflux air bag according to claim 1, it is characterized in that, described main frame (9) is made up of micro air pump (11), controller (12) and power supply (13), micro air pump (11), execution circuit (6) of losing heart, holding wire (8a) are all connected with controller (12), compressed-air line (5) is connected with micro air pump (11), and controller (12) is connected with power supply (13).

3. the veins of lower extremity of adding pressure type piecemeal auxiliary reflux air bag according to claim 2, it is characterized in that, described controller is cyclelog or 8051 singlechip controllers.

4. the veins of lower extremity of adding pressure type piecemeal auxiliary reflux air bag according to claim 1, it is characterized in that, the flow of described micro air pump is 0.5-3L/min, and the operating pressure of fan-shaped air bag is 180-280mmHg.

5. the veins of lower extremity of adding pressure type piecemeal auxiliary reflux air bag according to claim 1, it is characterized in that, the both sides of described fan-shaped air bag (1) are provided with velcro (2), and the matte limit (3a) of velcro (2) is wider than limit, hook side (3b).

6. the veins of lower extremity of adding pressure type piecemeal auxiliary reflux air bag according to claim 5, it is characterized in that, described disappointing execution circuit (6), holding wire (8a), compressed-air line (5) are set with flexible pipe (10), and are placed in matte limit (3a) side.