CN111671527A - A nuclear magnetic resonance shield - Google Patents

Abstract

The invention discloses a nuclear magnetic resonance protective shield which comprises a bacteriostatic cleaning layer, a basic tensile layer and an anti-puncture layer, wherein the basic tensile layer is positioned in a middle layer, the bacteriostatic cleaning layer and the anti-puncture layer are positioned on an outer layer of the basic tensile layer, the bacteriostatic cleaning layer is made of bacteriostatic non-woven fabric materials, the basic tensile layer is made of grid cloth materials, and the anti-puncture layer is made of woven cloth materials. The invention can block metal objects and prevent the metal objects from splashing to cause damage to personnel and equipment. The whole material of protection shield adopts the cloth to make, adopts non-metallic design, can not cause the influence to current nuclear magnetic resonance machine's detection method and the degree of accuracy, does not cause the influence basically to detection efficiency.

Description

A nuclear magnetic resonance shield

technical field

The invention relates to the technical field of nuclear magnetic resonance inspection and protection, in particular to a nuclear magnetic resonance protection shield.

Background technique

In the MRI inspection, since the inspection equipment will generate strong magnetism, it will attract magnetic objects around it. When the magnetic force is large enough, the objects will fly to the NMR inspection equipment in the form of splashes, resulting in unpredictable personal injury and Check for equipment damage.

SUMMARY OF THE INVENTION

In view of this, the present invention provides a nuclear magnetic resonance protective shield.

The technical means adopted in the present invention are as follows: a nuclear magnetic resonance protective shield, comprising a bacteriostatic cleaning layer, a basic tensile layer and an anti-puncture layer, the basic tensile layer is located in the middle layer, and the antibacterial cleaning layer and the anti-puncture layer Located on the outer layer of the basic tensile layer, the antibacterial cleaning layer is made of antibacterial non-woven material, the basic tensile layer is made of mesh cloth material, and the puncture-proof layer is made of textile cloth material .

Preferably, a bacteriostatic cleaning layer disposed on the outer layer of the anti-puncture layer is also included.

Preferably, the antibacterial cleaning layer, the basic tensile layer and the anti-puncture layer are adhesively connected by sticking.

Preferably, the adhesive connection is made of water-based polyurethane.

Preferably, the adhesive connection adopts Velcro bonding.

Preferably, the woven fabric is a polyethylene fiber woven fabric.

Preferably, the mesh cloth is PP polypropylene woven cloth.

Preferably, four corners of the basic tensile layer are fixed with traction ropes.

The nuclear magnetic resonance protection shield provided by the invention can block metal objects and prevent damage to personnel and equipment caused by splashing of metal objects. The material of the protective shield is made of cloth as a whole and adopts a non-metallic design, which will not affect the detection method and accuracy of the existing nuclear magnetic resonance machine, and basically does not affect the detection efficiency.

Description of drawings

Fig. 1 is the structural representation of embodiment 1 in the present invention;

FIG. 2 is a schematic structural diagram of Embodiment 3 of the present invention.

Detailed ways

The principles and features of the present invention are described below, and the examples are only used to explain the present invention, but not to limit the scope of the present invention.

Example 1

As shown in Figure 1, an NMR protective shield includes a bacteriostatic cleaning layer 1, a basic tensile layer 2 and an anti-puncture layer 3, the basic tensile layer 2 is located in the middle layer, the antibacterial cleaning layer 1 and the anti-puncture layer 3 Located on the outer layer of the basic tensile layer 2, the antibacterial cleaning layer 1 is made of antibacterial non-woven material, the basic tensile layer 2 is made of mesh cloth material, and the anti-puncture layer 3 is made of textile cloth material. Among them, the woven cloth is polyethylene fiber woven cloth, and the mesh cloth is PP polypropylene woven cloth. The antibacterial cleaning layer 1, the basic tensile layer 2 and the puncture-proof layer 3 are bonded and connected between adjacent layers by means of pasting. In this embodiment, chemical adhesives can be used for bonding, such as water-based polyurethane. Bonding, it has strong viscosity, which can effectively improve the bonding strength between layers. Better to ensure that the entire protective shield structure is firm and prevent sharp metal objects from being pierced. In the examination room, when the MRI machine is working, a magnetic field will be generated, and the surrounding metal objects will fly to the MRI machine after being affected by the magnetic field. Damage to personnel and equipment caused by splashing objects. The material of the protective shield is made of cloth as a whole and adopts a non-metallic design, which will not affect the detection method and accuracy of the existing nuclear magnetic resonance machine, and basically does not affect the detection efficiency. In addition to the need for regular inspections, the protective shield of the present invention basically has no late loss, low use cost, safety and reliability, and can resist sharp external forces. For sharp metal objects (keys, pins, hairpins, brooches, etc.) , basically will not pierce the protective shield, the blocking effect of the protective shield is remarkable, which can ensure that there will be no accidents during the MRI examination.

In actual use, the bacteria cleaning layer 1 should face the direction of the NMR machine, and the anti-puncture layer 3 should face the door. When not closed, the protective shield can block the metal objects flying in from the door. In addition, the protective shield can completely replace the door of the examination room, which can reduce the cost of the examination room as a whole and facilitate entry and exit.

Example 2

As shown in Figure 2, a nuclear magnetic resonance protective shield is arranged in sequence and includes a bacteriostatic cleaning layer 1, a basic tensile layer 2, an anti-puncture layer 3 and an antibacterial cleaning layer 1. The four corners of the basic tensile layer 2 are fixed with Has a leash. The traction rope is used to fix the entire MRI shield, and the traction rope is generally tied to the wall to ensure that it can withstand a large pulling force in the process of blocking metal objects. The bacteriostatic cleaning layer 1 is made of bacteriostatic non-woven material, the basic tensile layer 2 is made of mesh cloth material, and the anti-puncture layer 3 is made of textile cloth material. Among them, the woven cloth is polyethylene fiber woven cloth, and the mesh cloth is PP polypropylene woven cloth. The antibacterial cleaning layer 1, the basic tensile layer 2, the anti-puncture layer 3, and the two adjacent layers of the antibacterial cleaning layer 1 are bonded and connected by sticking. Active adhesive connection.

To sum up, the use of the nuclear magnetic resonance protective shield provided by the present invention can block metal objects and prevent damage to personnel and equipment caused by splashing of metal objects. The material of the protective shield is made of cloth as a whole and adopts a non-metallic design, which will not affect the detection method and accuracy of the existing nuclear magnetic resonance machine, and basically does not affect the detection efficiency.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the present invention. within the scope of protection.

Claims (8)

1. a nuclear magnetic resonance protective shield, is characterized in that, comprises antibacterial cleaning layer, basic tensile layer and anti-puncture layer, described basic tensile layer is positioned at middle layer, and described antibacterial cleaning layer and anti-puncture layer are positioned on basic For the outer layer of the tensile layer, the antibacterial cleaning layer is made of antibacterial non-woven material, the basic tensile layer is made of mesh cloth material, and the anti-puncture layer is made of textile cloth material. 2 . The nuclear magnetic resonance protective shield according to claim 1 , further comprising a bacteriostatic cleaning layer disposed on the outer layer of the anti-puncture layer. 3 . 3 . The nuclear magnetic resonance shield according to claim 1 or 2 , wherein the antibacterial cleaning layer, the basic tensile layer and the anti-puncture layer are bonded and connected by sticking. 4 . 4 . The nuclear magnetic resonance protective shield according to claim 3 , wherein the adhesive connection is made of water-based polyurethane. 5 . 5 . The nuclear magnetic resonance protective shield according to claim 3 , wherein the adhesive connection is made of Velcro. 6 . 6 . The nuclear magnetic resonance protective shield according to claim 3 , wherein the woven cloth is a polyethylene fiber woven cloth. 7 . 7 . The nuclear magnetic resonance protective shield according to claim 3 , wherein the mesh cloth is a PP polypropylene woven cloth. 8 . 8 . The nuclear magnetic resonance protective shield according to claim 1 or 2 , wherein the four corners of the basic tensile layer are fixedly provided with traction ropes. 9 .

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