CN219374653U - Auxiliary device for magnetic resonance examination - Google Patents

Abstract

The utility model discloses a magnetic resonance examination auxiliary device which comprises a fixed adjusting belt, wherein a limiting plate is arranged in the fixed adjusting belt, one side of the limiting plate is provided with a plurality of or a plurality of groups of air bags, the air bags are connected with an air pump through hoses and electromagnetic control valves, the fixed adjusting belt covers the limiting plate and the air bags, two ends of the fixed adjusting belt are bound through an adjusting mechanism in an adjustable mode, and when two ends of the fixed adjusting belt are bound, the air bags are positioned on the inner side of the limiting plate. The auxiliary device for magnetic resonance examination can accurately pressurize and fix the abdomen of patients with different body types, and simultaneously guide the respiratory amplitude and frequency of the patients, so that the respiratory amplitude and frequency of the patients are kept stable, thereby effectively reducing motion artifact and improving image quality.

Description

Auxiliary device for magnetic resonance examination

Technical Field

The utility model relates to the technical field of auxiliary equipment for magnetic nuclear resonance examination, in particular to an auxiliary equipment for magnetic nuclear resonance examination.

Background

During nuclear magnetic resonance examination, the patient is required to keep the frequency and the amplitude of respiration in a relatively stable state, so that the artifacts caused by respiratory motion are reduced, and therefore, respiratory training is required to be carried out on the patient before examination, but some patients cannot control own respiration well due to factors of older age or tension, so that the results imaged by nuclear magnetic resonance have larger artifacts, and doctors are influenced to judge the body of the patient. The time required for performing the magnetic resonance examination is longer, less for a few minutes, more than half an hour, the patient can be hard and tired easily when lying on the flat bed for a long time, and meanwhile, no prompt or guidance is provided during scanning, so that the breathing amplitude and the frequency are easy to change, and the formation of artifacts is further aggravated. In order to improve the image quality of respiratory motion parts such as abdomen, liver and the like in a magnetic resonance system, a respiratory triggering and respiratory motion compensation method is adopted to simultaneously cooperate with a respiratory monitoring device. The method can ensure that the tested person is in the same breathing phase when each magnetic resonance phase coding acquisition is performed, so that the motion artifact is reduced, and the image quality is improved, but the method only can ensure that the tested person is in the same breathing phase when each phase coding acquisition is performed, but the respiratory motion artifact weakening effect of a sequence requiring breath-hold (generally requiring 10-20 seconds for breath-hold, a plurality of patients can not hold breath for a long time, and the tested person is still in a respiratory motion state when the acquisition is performed) is not obvious, and in addition, the method needs to keep the breathing amplitude and the frequency stable in the whole scanning process, otherwise, the motion artifact cannot be reduced, and even the motion artifact is aggravated.

Disclosure of Invention

The utility model aims to provide a magnetic resonance examination auxiliary device which can accurately pressurize and fix the abdomen of patients with different body types, and simultaneously guide the respiratory amplitude and frequency of the patients, so that the respiratory amplitude and frequency of the patients are kept stable, thereby effectively reducing motion artifact and improving image quality.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a magnetic resonance inspection auxiliary device, includes fixed adjustment area be equipped with the limiting plate in the fixed adjustment area, be equipped with a plurality of or a plurality of group's gasbag in limiting plate one side, the gasbag links to each other with the air pump through hose, electromagnetic control valve, fixed adjustment area cladding limiting plate and gasbag and fixed adjustment area both ends are through adjustment mechanism adjustable binding, when fixed adjustment area both ends binding, the gasbag is located the limiting plate inboard.

Preferably, the air bags are provided with three to five or three to five groups, and each air bag or each group of air bags is connected with the hose and the electromagnetic control valve in a one-to-one correspondence manner.

Preferably, the limiting plate has elasticity and is arc-shaped.

Preferably, the adjusting mechanism is a magic tape or a male-female eye-splice.

Preferably, a plurality of or a plurality of groups of the air bags are transversely arranged in parallel, and when the air bags are inflated, the outer walls of two adjacent or two groups of the air bags are connected.

Preferably, the limiting plate is made of nylon, plastic or resin material through integral processing.

Further preferably, a pressure sensor is arranged on the air bag, and the pressure sensor and the electromagnetic control valve are both connected with a control system.

According to the technical scheme, the limiting plate is arranged in the fixed adjusting belt, so that the air bag can realize position fixation by means of the limiting plate and simultaneously forms limiting on the upper part of the air bag, and the air bag is forced to press the abdomen of a patient on the inner side of the fixed adjusting belt, so that the pressurizing and fixing effect on the patient is more obvious. Patients with different body types can bind the two ends through the adjustable of the adjusting mechanism on the fixed adjusting belt, so that the abdomen of the patient is fixed. According to the corresponding relation between the abdomen of the patient and three to five or three to five groups of air bags, one group or two adjacent groups or even three groups of air bags (one or two adjacent groups or even three air bags) are controlled to be inflated and deflated, so that the air bags can be used for accurately realizing pressurized fixation on the abdomen of the patient, and the inflation and deflation of the air bags guide the respiratory amplitude and the respiratory frequency of the patient, so that the respiratory amplitude and the respiratory frequency of the patient are kept stable and the breath-hold assistance is realized, thereby reducing motion artifacts and improving the image quality. The air bag has the advantages of strong pertinence, small inflation and deflation range and short time, further reduces the time required for examination, indirectly reduces the tension and anxiety emotion of the patient, and reduces the motion artifact. The limiting plate has elasticity and is arc, further laminates patient's size, and is better to patient's belly laminating effect, and the pressurization is fixed, guide breathing range and frequency effect are more obvious, and motion artifact is less, image quality is higher.

Drawings

FIG. 1 is a schematic diagram of the structure of the auxiliary device for MR examination in a front view;

fig. 2 is a schematic side view of the limiting plate and the balloon.

Detailed Description

The utility model is further described below with reference to the accompanying drawings:

as shown in fig. 1 and 2, the auxiliary device for magnetic resonance examination comprises a fixed adjusting belt 1, wherein the fixed adjusting belt 1 can be fixed on a flat support bed of a magnetic resonance examination device or not. When the fixed adjusting belt 1 is fixed on the flat supporting bed of the magnetic resonance examination equipment, both ends of the fixed adjusting belt 1 are exposed out of the flat supporting bed. The fixed adjusting belt 1 is internally provided with a limiting plate 2, one side of the limiting plate 2 is provided with three to five or three to five groups of air bags 3, the air bags 3 are connected with an air pump 6 through hoses 4 and electromagnetic control valves 5, each air bag or each group of air bags are connected with the hoses and the electromagnetic control valves in a one-to-one correspondence manner, and the inflation and deflation of each air bag are independently controlled through the corresponding electromagnetic control valve 5. The fixed adjusting belt 1 covers the limiting plate 2 and the air bag 3, and only the hose 4 penetrates out of the fixed adjusting belt 1. The two ends of the fixed adjusting belt 1 are bound through the adjusting mechanism 7 in an adjustable mode, the adjusting mechanism 7 is a common magic tape or a male buckle and a female buckle, when the fixed adjusting belt 1 is in a bound state, the air bag 3 is positioned on the inner side of the limiting plate 2, and the air bag 3 can wrap the abdomen of a patient. The arrangement of the limiting plate 2 ensures that the air bag can realize position fixation, and simultaneously forms limiting on the upper part of the air bag when the air bag is inflated, so that the air bag is forced to press the abdomen of a patient on the inner side of the fixed adjusting belt, and the pressurizing and fixing effect on the patient is more obvious. Patients with different body types can bind the two ends through the adjustable of the adjusting mechanism on the fixed adjusting belt, so that the abdomen of the patient is fixed. According to the corresponding relation between the abdomen of the patient and three to five or three to five groups of air bags, one group or two adjacent groups or even three groups of air bags (one or two adjacent groups or even three air bags) are controlled to be inflated and deflated, for example, when the patient is smaller in shape, only the first group of air bags 31 or the first group of air bags and the second group of air bags 32 are controlled, when the patient is larger in shape, the third group of air bags 33, the fourth group of air bags 34 and the fifth group of air bags 35 are simultaneously controlled, so that the air bags can be precisely fixed by pressurizing the abdomen of the patient, the abdomen of the patient is gradually pressurized when the air bags are inflated to guide the patient to inhale and hold breath, and the abdomen of the patient is gradually released when the air bags are deflated to guide the patient to breathe in amplitude and frequency, so that the patient is guided to keep the breathing amplitude and frequency stable, the motion artifact is effectively reduced, and the image quality is improved. By accurately controlling each air bag, instead of simultaneously inflating or deflating all the air bags, the inflation and deflation range of the air bags and the time required by inflation and deflation of the air bags are effectively reduced, the time required by examination is further reduced, the stress and anxiety emotion of a patient are indirectly reduced, and the motion artifact is reduced. In this embodiment, the limiting plate has elasticity and is the arcuation, and preferably nylon, plastics or resin material integrated into one piece, this can further laminate patient's body type, and is better to patient's abdomen laminating effect, and it is fixed to pressurize, the guide breathing range is more obvious with the frequency effect, and motion artifact is littleer, image quality is higher.

In a preferred embodiment, the airbags are arranged in a lateral side-by-side manner, and when the airbags are inflated, the outer walls of two adjacent airbags or two groups of airbags are connected, so that the occurrence of pressurization leaks is avoided. Furthermore, a pressure sensor (not shown in the drawing) is arranged on the side of the air bag far limit plate, the pressure sensor and the electromagnetic control valve are connected with a control system (not shown in the drawing), the pressure sensor monitors the pressure applied to a patient by the air bag, and then the inflation and deflation of the air bag are controlled, so that the excessive or insufficient pressure of the air bag to the patient is prevented. The position of the auxiliary device for the magnetic nuclear resonance examination can be adjusted to be arranged on the flat support bed, so that the auxiliary device is further suitable for the requirements of patients with different heights.

According to the technical scheme, the two ends of the fixed adjusting belt 1 are bound on the flat support bed of the magnetic resonance examination equipment for the patient to lie on, one or two adjacent groups or even three groups of air bags (one or two adjacent groups or even three groups of air bags) are controlled to be inflated and deflated according to the corresponding relation between the abdomen of the patient, so that the air bags can accurately pressurize and fix the abdomen of the patient, the abdomen of the patient is gradually pressurized and guided to inhale and hold breath when inflated and held, the abdomen of the patient is gradually depressurized when deflated, and the breathing amplitude and frequency of the patient are guided, so that the breathing amplitude and frequency of the patient are guided to be stable, the motion artifact is effectively reduced, and the image quality is improved.

The present embodiments are merely illustrative of the present utility model and are not intended to be limiting, and the technical solutions that are not substantially transformed under the present utility model are still within the scope of protection.

Claims (7)

1. The utility model provides a magnetic resonance inspection auxiliary device, includes fixed adjustment area, its characterized in that be equipped with the limiting plate in the fixed adjustment area, be equipped with a plurality of or a plurality of group's gasbag in limiting plate one side, the gasbag links to each other with the air pump through hose, solenoid control valve, fixed adjustment area cladding limiting plate and gasbag and fixed adjustment area both ends are through adjustment mechanism adjustable binding, when fixed adjustment area both ends binding, the gasbag is located the limiting plate inboard.

2. The auxiliary device for magnetic resonance examination as claimed in claim 1, wherein the air bags are provided with three to five or three to five groups, and each or each group of air bags is connected with a hose and an electromagnetic control valve in a one-to-one correspondence manner.

3. The magnetic resonance examination assistance device according to claim 1 or 2, wherein the limiting plate has elasticity and is arc-shaped.

4. The magnetic resonance examination assistance device according to claim 1 or 2, wherein the adjustment mechanism is a velcro or a male-female buckle.

5. The magnetic resonance examination assistance device according to claim 1 or 2, wherein a plurality of said air bags or a plurality of said air bags are arranged laterally side by side, and when the air bags are inflated, two adjacent air bag outer walls or two adjacent air bag outer walls are connected.

6. The auxiliary device for mr examination according to claim 1 or 2, wherein the limiting plate is integrally formed of nylon, plastic or resin.

7. The auxiliary device for magnetic resonance examination as claimed in claim 1 or 2, wherein a pressure sensor is arranged on the air bag, and the pressure sensor and the electromagnetic control valve are connected with a control system.