CN204033334U - A kind of magnetic resonance imaging inflated type location helmet - Google Patents

Abstract

The utility model discloses a magnetic resonance scanning inflatable positioning helmet, which comprises a helmet, the helmet is semicircular, and a plurality of inflatable airbags are distributed on the inner wall of the helmet, and the airbags are connected to each other through a trachea; A plurality of positioning tubes are distributed on the top, and a positioning agent is arranged in the positioning tubes; the helmet is detachably mounted on a positioning plate. The utility model is easy to wear and easy to use, and only needs to be worn by the patient and then fixed, which improves the inspection efficiency and has strong versatility; on the premise of effective fixation, the comfort of the patient can be improved, even if the patient has manic fretting, It can also achieve a good fixation effect without causing damage to the patient, and it is convenient to cooperate with scanning to determine the location of the lesion.

Description

An inflatable positioning helmet for magnetic resonance scanning

technical field

The utility model belongs to the technical field of medical supplies, in particular to an inflatable positioning helmet used by patients during magnetic resonance examination.

Background technique

Magnetic resonance examination technology has a wide range of applications. It is the most effective imaging diagnosis method for brain, spinal cord and other diseases. It can freely select the required section by adjusting the magnetic field, and convert the signal into an image through digital reconstruction through the computer system. It provides a basis for clinical diagnosis, and can obtain images of parts that are inaccessible or inaccessible to other imaging techniques. It can detect brain tumors, cerebral infarction, cerebral hemorrhage, brain abscess, cerebral cysticercosis and congenital cerebrovascular malformation early, and can also determine hydrocephalus. Therefore, it has an important application in the diagnosis of clinical brain diseases.

When the patient undergoes an MRI examination, the head position needs to be fixed to prevent the patient’s head from shaking during the examination process, causing ghost images and affecting the examination results; other examinations also need to cooperate with extracorporeal positioning agents to assist in determining the position of the head. location of the lesion. At present, clinically, the method of placing a pillow with grooves on the scanning table, tying cloth strips or splints to fix the patient's head is often used, but there are many defects:

1. The existing fixation method is cumbersome, there is no uniform standard, it is relatively blunt, the fixation effect is poor, and it is easy to damage the patient; 2. During MRI enhanced scanning, the scanner will generate huge noise when it is running, and it lasts for a long time. The noise reduction measures of earplugs are used, but patients are still prone to agitation symptoms, which affect the scanning results; 3. Traditional fixation methods, and some fixation devices, have poor fixation effects on patients with poor autonomy, but only a little movement during scanning may The main reason for affecting the scan results is that the patient's head cannot be fixed effectively and relatively comfortably; 4. Some scans require a localizer to determine the location of the lesion. Currently, there is no special device to accurately place the position of the localizer.

Contents of the invention

In view of the problems existing in the above-mentioned prior art, the purpose of this utility model is to provide an inflatable positioning helmet for magnetic resonance scanning, which can effectively, comprehensively and comfortably fix the patient's head and can assist in the determination of lesions.

In order to achieve the above tasks, the utility model adopts the following technical solutions:

A magnetic resonance scanning inflatable positioning helmet, including a helmet, a plurality of inflatable airbags are distributed on the inner wall of the helmet, and the airbags are connected to each other through a trachea; a plurality of positioning tubes are distributed on the helmet, and positioning tubes are arranged in the positioning tubes. agent; the helmet is detachably mounted on a positioning plate.

Further, the positioning tube communicates with the helmet, the positioning agent is cylindrical, the positioning agent is fixed on a push rod, and a positioning scale is arranged on the push rod, and the position of the positioning agent in the positioning tube is adjusted through the push rod. Location.

Further, the airbags are arranged in at least two annular layers on the inner wall of the helmet, and each layer is provided with multiple layers, and one or more of the airbags is provided with an inflation port passing through the side wall of the helmet.

Further, the airbags are in the shape of strips, cakes, regular or irregular polygons.

Further, a clamping plate is provided on the outer wall of the helmet, a positioning plate is detachably installed on the scanning bed, a clamping slot is opened on the positioning plate to cooperate with the clamping plate, and an adjustment scale is provided on the clamping slot.

Further, the positioning tubes are arranged at symmetrical positions on the top of the helmet and the lower edge of the helmet.

Further, a fastening belt is provided on the lower edge of the helmet.

Further, the helmet is semicircular.

Compared with the prior art, the utility model has the following technical characteristics:

1. It is easy to wear and easy to use. It only needs to be worn by the patient and then fixed, which improves the inspection efficiency and has strong versatility;

2. On the premise of effective fixation, the comfort of the patient can be improved. Even if the patient has manic and fretting movements, a good fixation effect can be achieved without causing damage to the patient;

3. It is equipped with a positioning agent installation hole, which can adjust the position of the positioning agent, which is convenient to cooperate with the scan to determine the location of the lesion.

Description of drawings

Fig. 1 is the perspective structural representation of the utility model;

Figure 2 is a schematic diagram of the appearance of the helmet;

Fig. 3 is the structural schematic diagram of positioning tube part;

The symbols in the figure represent: 1—helmet, 2—push rod, 3—positioning scale, 4—positioning tube, 5—positioning agent, 6—holding plate, 7—fastening belt, 8—trachea, 9—inflatable port, 10 —airbag, 11—fixing hole, 12—positioning plate, 13—adjustment scale, 14—card slot;

Detailed ways

According to the above technical scheme, as shown in Figures 1 to 3, a magnetic resonance scanning inflatable positioning helmet includes a helmet 1, the helmet 1 is a semicircle, and a plurality of inflatable valves are distributed on the inner wall of the helmet 1 The airbags 10 communicate with each other through the trachea 8; a plurality of positioning tubes 4 are distributed on the helmet 1, and a positioning agent 5 is arranged in the positioning tubes 4; the helmet 1 is detachably mounted on a positioning plate 12.

There are two main problems in the MRI examination process. One is the fixation of the patient’s head: due to the huge noise generated when the scanner is running, some patients will experience agitation symptoms when they are in the noisy environment for a long time, and the shaking of the patient’s skull will cause Affects the scan results, and the patient's head cannot be effectively fixed at present; although there are some auxiliary hoods, the size of the hood cannot be adjusted, which is not suitable for different patients. After the patient wears the hood, the hood does not fit tightly, and the head Second, for the positioning and comparison of some lesions, it is necessary to set a positioning agent 5 in vitro, and compare and locate the lesions by scanning the position of the positioning agent 5 on the slice. In view of this, the structure of the utility model is as shown in the figure: it includes a semicircular helmet 1, the size of the helmet 1 is larger than the head size of a general patient, and the purpose of setting the circle is to make it suitable for each patient , instead of making additional adjustments to the helmet 1, enhancing its versatility.

At least two layers of airbags 10 are annularly distributed on the inner wall of the helmet 1 , and each layer is provided with a plurality of airbags 10 . The airbags 10 are in the shape of strips, cakes, layers, regular or irregular polygons, and the shapes of all the airbags 10 can be the same or different. According to the actual setting of their positions, after all the airbags 10 are inflated as much as possible, The maximum protrusions of the airbags 10 are substantially the same. One or more of the airbags 10 is provided with an inflation port 9 passing through the side wall of the helmet 1, and multiple inflation ports 9 are preferably provided to make the inflation more rapid and uniform.

The airbags 10 are not inflated before use. After the patient puts on the helmet 1, the head is positioned between the airbags 10, and then the airbags 10 are slowly inflated through the inflation ports 9 connected on the airbags 10. Since all the airbags 10 are connected, when one airbag 10 is inflated and in close contact with a certain position of the patient's head, the airbag 10 will not continue to inflate, but will guide the continuously entering gas to the airbag with lower air pressure through the trachea 8 10, that is, the airbag 10 that has not fully protruded and is in contact with the patient's head. Finally, after all the airbags 10 expand and contact the patient's head, they will no longer continue to inflate the airbag 10, so that the distance between the patient's head and the helmet 1 is very high. Good fixation, good fit and at the same time very comfortable for the patient's head.

In order to be further fixed, a fastening belt 7 is provided on the lower edge of the helmet 1. After the patient puts on the helmet 1, the helmet 1 and the lower jaw are relatively fixed by the fastening belt 7 first, and then the airbag 10 is inflated. During the inflation process, the whole helmet 1 will not move away from the patient's head due to the extrusion of the airbag 10 .

A plurality of positioning tubes 4 are distributed on the helmet 1, and its structure is shown in Figure 3. The positioning tubes 4 communicate with the helmet 1. The positioning agent 5 is cylindrical, and the positioning agent 5 is fixed on a push rod 2. 2 is provided with a positioning scale 3, and the position of the positioning agent 5 in the positioning tube 4 is adjusted through the push rod 2. The positioning agent 5 is a contrast agent, which is developed under the scanning film to determine its position. The utility model can accurately determine its position: firstly, the shape of the helmet 1 is regular, and its outer diameter is also known; secondly, the length of the positioning tube 4 and the length of the positioning agent 5 are all fixed, and when pushing The rod 2 is provided with a positioning scale 3, through which the position of the positioning agent 5 can be read, so that the distance between each positioning agent 5 and the patient's head can be precisely set.

As shown in Figure 2, in this embodiment, the positioning tube 4 is arranged on the top of the helmet 1 and at symmetrical positions on the lower edge of the helmet 1. Through these positions, the auxiliary positioning requirements of the head can be basically met, and more can also be set as required. Multiple positioning tubes4. When setting the positioning tube 4, note that the position where the positioning tube 4 communicates with the helmet 1 cannot have an air bag 10, and can be the position of the trachea 8 to prevent the air bag 10 from blocking the progress of the positioning agent 5. In order to explain the structure of the utility model more clearly, the helmet 1 in Fig. 1 adopts perspective processing, but actually the airbag 10 is arranged on the inner wall of the helmet 1 .

A clamping plate 6 is arranged on the outer wall of the helmet 1, and a positioning plate 12 is detachably installed on the scanning bed. The positioning plate 12 is provided with a clamping groove 14 matched with the clamping plate 6, and an adjustment scale 13 is arranged on the clamping groove 14. The positioning plate 12 is provided with a fixing hole 11, and is detachably connected with the scanning bed through the fixing hole 11. For some patients with poor self-awareness, after the head is fixed by the helmet 1, the whole head may shake during the scanning process because it cannot cooperate with the doctor well. The method of installing the positioning plate 12, on the one hand, the positioning plate 12 cooperates with the clamping plate 6 on the helmet 1 through the clamping groove 14 to fix the helmet 1, so that even if the patient has a tendency to turn the neck, the head will not be caused. rotation; on the other hand, an adjustment scale 13 is provided on the slot 14, through which the position determination and adjustment of the positioning agent 5 can be performed more accurately and conveniently.

Except for the positioning agent 5, all parts of the utility model are made of low-density materials, so as to reduce the influence of materials on the scanning results as much as possible.

Claims (8)

1. A magnetic resonance scanning inflatable positioning helmet, comprising a helmet (1), is characterized in that a plurality of inflatable air bags (10) are distributed on the inwall of the helmet (1), and between the air bags (10) pass through the trachea ( 8) Interconnected; a plurality of positioning tubes (4) are distributed on the helmet (1), and a positioning agent (5) is arranged in the positioning tubes (4); the helmet (1) is detachably mounted on a positioning plate (12) superior. 2. the magnetic resonance scanning inflatable positioning helmet as claimed in claim 1, is characterized in that, described positioning tube (4) is communicated with helmet (1), and described positioning agent (5) is cylindrical, and positioning agent (5) It is fixed on a push rod (2), and the push rod (2) is provided with a positioning scale (3), and the position of the positioning agent (5) in the positioning tube (4) is adjusted through the push rod (2). 3. The magnetic resonance scanning inflatable positioning helmet as claimed in claim 1, characterized in that, said airbag (10) is provided with at least two layers annularly on the inner wall of the helmet (1), and each layer is provided with a plurality of layers; One or more airbags (10) are provided with an inflation port (9) passing through the side wall of the helmet (1). 4. The magnetic resonance scanning inflatable positioning helmet as claimed in claim 1 is characterized in that, the outer wall of the helmet (1) is provided with clamping plate (6), and the positioning plate (6) is detachably installed on the scanning bed 12), the positioning plate (12) is provided with a draw-in groove (14) matched with the clamp plate (6), and the draw-in groove (14) is provided with an adjustment scale (13). 5. The magnetic resonance scanning inflatable positioning helmet according to claim 1, wherein the positioning tube (4) is arranged on the top of the helmet (1) and at a symmetrical position on the lower edge of the helmet (1) . 6. The magnetic resonance scanning inflatable positioning helmet according to claim 1, characterized in that a fastening belt (7) is arranged on the lower edge of the helmet (1). 7. The magnetic resonance scanning inflatable positioning helmet according to claim 1, characterized in that, the airbag (10) is strip-shaped, pie-shaped, regular or irregular polygonal. 8. The magnetic resonance scanning inflatable positioning helmet according to claim 1, characterized in that, the helmet (1) is semicircular.