CN111297357A - Negative pressure bag fixing device for nuclear magnetic resonance accelerator - Google Patents

Abstract

The invention discloses a negative pressure bag fixing device for a nuclear magnetic resonance accelerator, which comprises a fixing plate, which can be detachably connected with a bed plate of a nuclear magnetic resonance accelerator, and the width of the fixing plate is narrower than that of the bed plate of the nuclear magnetic resonance accelerator. There is a positioning mechanism which is protruded and arranged in the direction away from the bed plate of the nuclear magnetic resonance accelerator, the positioning mechanism can fix the negative pressure bag, and the fixing plate and the positioning mechanism are both made of non-magnetic materials. When using the negative pressure bag fixing device for nuclear magnetic resonance accelerator of the present invention, the fixing plate is connected with the bed plate of the nuclear magnetic resonance accelerator to improve the stability of the fixing device, the negative pressure bag is placed on the fixing plate, and the convex positioning mechanism of the fixing plate After the negative pressure bag is evacuated to the state of vacuum negative pressure, the negative pressure bag can be fixed to prevent the negative pressure bag from moving. The fixing plate is made of non-magnetic material, and the volume is small, so that the negative pressure bag will not affect the coil work, and it is portable and reliable.

Description

A negative pressure bag fixing device for nuclear magnetic resonance accelerator

technical field

The invention relates to the technical field of medical clinical equipment application, in particular to a negative pressure bag fixing device for a nuclear magnetic resonance accelerator.

Background technique

At present, in the precise radiotherapy of tumors, reliable body position fixation is the premise of precise radiotherapy. The Elekta Unity nuclear magnetic accelerator can perform both radiotherapy and MRI, but MRI requires coils to receive MRI signals for imaging. The apertures of the coil and the accelerator are the same. The patient negative pressure bag obtained by using the conventional large-aperture positioning bed will hinder the coil, affect the quality of MRI, and even cause the coil to fail to cover the diseased part, thus making it impossible to perform MRI. Serious consequences. If the positioning of the negative pressure bag is abandoned, and the patient lies directly on the scanning bed for radiotherapy, it is difficult to maintain a consistent posture for a long time, which increases the risk of radiotherapy and affects the effect of radiotherapy.

Therefore, how to change the situation in the prior art that the conventional large-aperture positioning bed negative pressure bag will hinder the coil, but it is difficult to maintain the patient's body position by abandoning the negative pressure bag has become an urgent problem for those skilled in the art.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a negative pressure bag fixing device for a nuclear magnetic resonance accelerator to solve the above-mentioned problems in the prior art, so that the negative pressure bag can maintain the patient's body position on the premise that the negative pressure bag does not affect the coil.

In order to achieve the above purpose, the present invention provides the following solutions: the present invention provides a negative pressure bag fixing device for a nuclear magnetic resonance accelerator, comprising a fixing plate, which can be detachably connected to the bed plate of the nuclear magnetic resonance accelerator, and the fixing The width of the plate is narrower than the width of the bed plate of the nuclear magnetic resonance accelerator, and the fixed plate has a positioning mechanism that is protruded toward the direction away from the bed plate of the nuclear magnetic resonance accelerator. The positioning mechanism can fix the negative pressure bag, and the fixed plate is composed of and The positioning mechanisms are all made of non-magnetic materials.

Preferably, the positioning mechanism includes positioning columns, the positioning columns are divided into two groups, and the positioning columns of the two groups are symmetrically arranged.

Preferably, the number of the positioning columns in each group is multiple, and the multiple positioning columns are evenly distributed along the length direction of the nuclear magnetic resonance accelerator bed.

Preferably, the positioning column is a cylindrical structure.

Preferably, the size of the fixing plate is 60cm×50cm×2cm, the number of the positioning columns in each group is 3, the diameter of the positioning columns is 1.5 cm, and the height of the positioning columns is 4 cm.

Preferably, the fixing plate is connected to the bed of the nuclear magnetic resonance accelerator through an adapting strip, the adapting strip is a belt-like structure, and one end of the adapting strip can be connected to the positioning groove of the bed of the nuclear magnetic resonance accelerator. The other end of the strip can be connected to the fixing plate.

Preferably, the two ends of the adapter bar have pressing blocks, the pressing blocks can be snapped with the positioning grooves of the NMR accelerator bed, and the middle position of the adapter bar has two positioning blocks, and the fixed The board has through holes matching with the positioning holes, and the positioning blocks can be inserted and connected with the through holes.

Preferably, the number of the adapting strips is one, the adapting strips are symmetrically arranged in the middle of the fixing plate, and both ends of the adapting strips are clamped with the positioning grooves of the nuclear magnetic resonance accelerator bed.

Compared with the prior art, the present invention achieves the following technical effects: the negative pressure bag fixing device for a nuclear magnetic resonance accelerator of the present invention includes a fixing plate, which can be detachably connected with the bed board of the nuclear magnetic resonance accelerator, and the width of the fixing plate is larger than that of the nuclear magnetic resonance accelerator. The width of the bed plate of the resonance accelerator is narrow, and the fixed plate has a positioning mechanism protruding toward the direction away from the bed plate of the nuclear magnetic resonance accelerator. The positioning mechanism can fix the negative pressure bag. When using the negative pressure bag fixing device for nuclear magnetic resonance accelerator of the present invention, the fixing plate is connected with the bed plate of the nuclear magnetic resonance accelerator to improve the stability of the fixing device, the negative pressure bag is placed on the fixing plate, and the convex positioning mechanism of the fixing plate After the negative pressure bag is evacuated to the state of vacuum negative pressure, the negative pressure bag can be fixed to prevent the negative pressure bag from moving. The fixing plate is made of non-magnetic material, with a small volume, so that the negative pressure bag will not affect the coil work, and it is portable and reliable. The applicability of the device is improved, and the fixing device of the present invention can also fix styrofoam, facial mask and the like according to clinical needs.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some of the present invention. In the embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative labor.

Fig. 1 is the structural representation of the negative pressure bag fixing device for nuclear magnetic resonance accelerator of the present invention;

Among them, 1 is a fixed plate, 2 is a positioning column, 3 is an adapter strip, 4 is a through hole, and 5 is a nuclear magnetic resonance accelerator bed plate.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

The purpose of the present invention is to provide a negative pressure bag fixing device for a nuclear magnetic resonance accelerator to solve the above-mentioned problems in the prior art, so that the negative pressure bag can maintain the patient's body position on the premise that the negative pressure bag does not affect the coil.

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

Please refer to FIG. 1 . FIG. 1 is a schematic structural diagram of a negative pressure bag fixing device for a nuclear magnetic resonance accelerator according to the present invention.

The present invention provides a negative pressure bag fixing device for a nuclear magnetic resonance accelerator, comprising a fixing plate 1, which can be detachably connected to a nuclear magnetic resonance accelerator bed 5, and the width of the fixing plate 1 is narrower than that of the nuclear magnetic resonance accelerator bed 5. The fixing plate 1 is provided with a positioning mechanism protruding away from the nuclear magnetic resonance accelerator bed 5 , the positioning mechanism can fix the negative pressure bag, and both the fixing plate 1 and the positioning mechanism are made of non-magnetic materials.

When the negative pressure bag fixing device for nuclear magnetic resonance accelerator of the present invention is used, the fixing plate 1 is connected with the bed plate 5 of the nuclear magnetic resonance accelerator to improve the stability of the fixing device. The positioning mechanism can fix the negative pressure bag after the negative pressure bag is evacuated to the vacuum negative pressure state, so as to avoid the negative pressure bag from moving. The fixing plate 1 is made of non-magnetic material and has a small volume, so that the negative pressure bag will not affect the coil work. , and is portable and reliable, which improves the applicability of the device, and the fixing device of the present invention can also fix styrofoam, facial mask and the like according to clinical needs.

Among them, the positioning mechanism includes a positioning column 2, the positioning column 2 is divided into two groups, the two sets of positioning columns 2 are symmetrically arranged, and two sets of positioning columns 2 are arranged to enhance the fixing effect of the positioning mechanism on the negative pressure bag. Open it to make the inside of the negative pressure bag soft, place the negative pressure bag on the fixing plate 1, the positioning column 2 determines the shape of the bottom of the negative pressure bag, and fix the position of the negative pressure bag. The patient lies supine on the negative pressure bag, select In a suitable and comfortable body position, the two ends of the negative pressure bag are fixed along the edge of the fixed plate 1, so that the negative pressure bag is located inside the positioning groove of the NMR accelerator bed plate 5, so as to ensure that the negative pressure bag is located in the coil hub of the NMR accelerator.

Specifically, there are multiple positioning columns 2 in each group, and the multiple positioning columns 2 are evenly distributed along the length direction of the NMR accelerator bed 5 to further enhance the positioning effect of the positioning columns 2 on the negative pressure bag.

In this specific embodiment, the positioning column 2 is a cylindrical structure, so as to prevent the positioning column 2 from damaging the negative pressure bag.

In addition, in this specific embodiment, the size of the fixed plate 1 is 60cm×50cm×2cm, the fixed plate 1 is a rectangular plate-like structure, the longer side is parallel to the length direction of the nuclear magnetic resonance accelerator bed 5, and the side length is The shorter side is parallel to the width direction of the NMR accelerator bed 5, the number of each group of positioning columns 2 is 3, the diameter of the positioning columns 2 is 1.5cm, and the height of the positioning columns 2 is 4cm, to ensure that the positioning columns 2 can be fixed Negative pressure bag.

More specifically, the fixed plate 1 is connected with the nuclear magnetic resonance accelerator bed plate 5 through the adapter strip 3, the adapter strip 3 is a belt-like structure, and one end of the adapter strip 3 can be connected with the positioning groove of the nuclear magnetic resonance accelerator bed plate 5, and the adapter strip The other end of 3 can be connected with the fixed plate 1, and the fixed plate 1 can be connected with the bed plate 5 of the nuclear magnetic resonance accelerator through the adapter strip 3, which is simple to operate and easy to disassemble and assemble.

It should be noted that the two ends of the adapter strip 3 are provided with pressing blocks, which can be clamped with the positioning grooves of the NMR accelerator bed 5, and the operation of the clamping connection is simple and fast. The middle position of the adapter strip 3 has two The positioning block, the fixed plate 1 has a through hole 4 that is adapted to the positioning hole, the positioning block can be connected with the through hole 4 by plugging, one end of the adapter strip 3 is clamped with the positioning slot of the nuclear magnetic resonance accelerator bed bar, and the other end is fixed with The through holes 4 of the board 1 are connected by plugging, which is convenient for disassembly and assembly, and reduces the workload of the operator.

Further, the number of adapter bars 3 is one, the adapter bar 3 is arranged in the middle position of the fixed plate 1, and both ends of the adapter bar 3 are clamped with the positioning grooves of the nuclear magnetic resonance accelerator bed plate 5, which improves the stability of the fixed plate 1 and 1. The connection reliability of the bed plate 5 of the nuclear magnetic resonance accelerator.

In the negative pressure bag fixing device for nuclear magnetic resonance accelerator of the present invention, the fixing plate 1 is connected with the bed plate 5 of the nuclear magnetic resonance accelerator by using the adapter bars 3 on both sides of the fixing plate 1, and two sets of positioning columns 2 are arranged on the fixing plate 1 to enhance the positioning The fixation effect of the mechanism on the negative pressure bag. When in use, the valve of the negative pressure bag is opened to make the inside of the negative pressure bag soft, and the negative pressure bag is placed on the fixing plate 1. The positioning column 2 determines the shape of the bottom of the negative pressure bag and is fixed. The position of the negative pressure bag, the patient is lying on the back of the negative pressure bag, choose a suitable and comfortable body position, the two ends of the negative pressure bag are fixed along the edge of the fixed plate 1, so that the negative pressure bag is located at the position of the MRI accelerator bed plate 5 The inside of the slot to ensure that the negative pressure bag is located inside the coil hub of the NMR accelerator. Among them, the fixed plate 1 is made of a uniform material with a measurable electron density, which is non-magnetic and has a certain hardness, and is not easy to deform. The electron density of the selected material is low, and the impact on the dose is small, so that the fixed plate 1 is portable and reliable. sex. In addition, the fixing device of the present invention also has versatility and versatility, and can be applied to conventional accelerators to fix negative pressure bags, and can also fix styrofoam, facial masks and the like according to clinical needs.

In the present invention, specific examples are used to illustrate the principles and implementations of the present invention, and the descriptions of the above embodiments are only used to help understand the method and the core idea of the present invention; The idea of the invention will have changes in the specific implementation manner and application range. In conclusion, the contents of this specification should not be construed as limiting the present invention.

Claims (8)

1. The utility model provides a negative pressure bag fixing device for nuclear magnetic resonance accelerator which characterized in that: the fixed plate can be detachably connected with a bed plate of a nuclear magnetic resonance accelerator, the width of the fixed plate is narrower than that of the bed plate of the nuclear magnetic resonance accelerator, a positioning mechanism protruding towards the direction far away from the bed plate of the nuclear magnetic resonance accelerator is arranged on the fixed plate, the positioning mechanism can fix a negative pressure bag, and the fixed plate and the positioning mechanism are made of nonmagnetic materials.

2. The negative pressure bag fixing device for the nuclear magnetic resonance accelerator according to claim 1, wherein: the positioning mechanism comprises two groups of positioning columns which are symmetrically arranged.

3. The negative pressure bag fixing device for the nuclear magnetic resonance accelerator according to claim 2, wherein: every group the quantity of reference column is a plurality of, and is a plurality of the reference column is along the length direction equipartition setting of nuclear magnetic resonance accelerator bed board.

4. The negative pressure bag fixing device for the nuclear magnetic resonance accelerator according to claim 3, wherein: the positioning column is of a cylindrical structure.

5. The negative pressure bag fixing device for the nuclear magnetic resonance accelerator according to claim 3, wherein: the specification of the fixed plate is 60cm multiplied by 50cm multiplied by 2cm, the number of each group of positioning columns is 3, the diameter of each positioning column is 1.5cm, and the height of each positioning column is 4 cm.

6. The negative pressure bag fixing device for the nuclear magnetic resonance accelerator according to claim 1, wherein: the fixed plate passes through the adaptation strip and links to each other with nuclear magnetic resonance accelerator bed board, the adaptation strip is the band structure, the one end of adaptation strip can link to each other with the constant head tank of nuclear magnetic resonance accelerator bed board, the other end of adaptation strip can with the fixed plate links to each other.

7. The negative pressure bag fixing device for the nuclear magnetic resonance accelerator according to claim 6, wherein: the both ends of adaptation strip have the compact heap, the compact heap can with the constant head tank joint of nuclear magnetic resonance accelerator bed board, the intermediate position of adaptation strip has two locating pieces, have on the fixed plate with the through-hole of locating hole looks adaptation, the locating piece can with the through-hole is pegged graft and is linked to each other.

8. The negative pressure bag fixing device for the nuclear magnetic resonance accelerator according to claim 7, wherein: the quantity of adaptation strip is one, adaptation strip symmetry set up in the middle part of fixed plate, the both ends of adaptation strip all with the constant head tank joint of nuclear magnetic resonance accelerator bed board.

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