CN113558604A - Device and method for fixing magnetic resonance flexible radio frequency coil - Google Patents
Device and method for fixing magnetic resonance flexible radio frequency coil Download PDFInfo
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- CN113558604A CN113558604A CN202110728224.4A CN202110728224A CN113558604A CN 113558604 A CN113558604 A CN 113558604A CN 202110728224 A CN202110728224 A CN 202110728224A CN 113558604 A CN113558604 A CN 113558604A
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- chain
- magnetic resonance
- flexible
- radio frequency
- coil
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- 238000000034 method Methods 0.000 title claims abstract description 33
- 229920003023 plastic Polymers 0.000 claims abstract description 6
- 239000004033 plastic Substances 0.000 claims abstract description 6
- 210000000629 knee joint Anatomy 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 3
- 238000009459 flexible packaging Methods 0.000 description 3
- 238000002595 magnetic resonance imaging Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
- A61B5/055—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
Abstract
The invention relates to the technical field of magnetic resonance, in particular to a device and a method for fixing a magnetic resonance flexible radio frequency coil. An apparatus for securing a magnetic resonance flexible radio frequency coil, comprising a link, characterized in that: the device comprises a single chain or a ring chain formed by connecting chain links end to end; one end of each chain link is of a spherical raised head structure, the other end of each chain link is of a spherical concave cavity structure, and the diameter of the opening of each spherical concave cavity is smaller than that of each spherical raised head; the chain links are made of plastics. Compared with the prior art, the device and the method for fixing the magnetic resonance flexible radio frequency coil are provided, the main body part is formed by splicing a plurality of chain links with simple structures end to end, and the chain links are made into long chains or loop chains, or are spliced into more complicated shapes such as grids with the help of auxiliary chain links with other similar principles, and can be conveniently bent and deformed into any required shape at will, so that the coil can be fixed on a patient.
Description
Technical Field
The invention relates to the technical field of magnetic resonance, in particular to a device and a method for fixing a magnetic resonance flexible radio frequency coil.
Background
Magnetic resonance imaging is an advanced technique for non-destructive imaging of the human body and is widely applied to diagnosis of diseases of various parts of the human body. The performance of the magnetic resonance radio frequency coil, which is an important component of the magnetic resonance imaging system, directly determines the quality of the magnetic resonance imaging.
In order to obtain better image quality, it is generally desirable to have the coils as close as possible to the body. Especially in recent years, with the development of magnetic resonance technology, flexible radio frequency coils are popular due to the characteristics of light weight, flexibility, high patient comfort, wide application range and the like. However, since the shapes of various parts of the human body are different, how to fix the coil, especially the flexible radio frequency coil, quickly and conveniently to make the coil attach to the part to be inspected of the patient as closely as possible is always the focus of attention in the technical field of magnetic resonance. The most common method of securing the coil is by means of a strap, usually with velcro or snaps, which is used to secure the coil to the patient's body. Although this method is simple, the operation is somewhat complicated, and the straps are easily soiled and not easily cleaned. Therefore, many different methods for fixing the coil (such as patents: CN101361658A, CN201820757195CN101361658B, CN201820757195, CN201920959361.7 and CN 200520125351.1) are designed, such as an air bag method, a sand bag method and the like, and even different auxiliary devices are designed according to different coils and different application positions. However, these methods have complicated design, high cost, complicated operation and generally low versatility.
Especially, as the application of super soft coil is started to spread and popularize in recent years, when the coil is fixed by using the binding band, because the coil is particularly soft, a plurality of binding bands are needed to be used for fixing at the same time, otherwise, the coil of the body coil in the size can warp at the place where the binding band is not bound, and can not be close to the human body, thereby the image quality is realized.
Disclosure of Invention
The invention provides a device and a method for fixing a magnetic resonance flexible radio frequency coil, aiming at overcoming the defects of the prior art.
In order to achieve the above object, an apparatus for fixing a magnetic resonance flexible radio frequency coil is designed, which includes a chain link, and is characterized in that: the device comprises a single chain or a ring chain formed by connecting chain links end to end; one end of each chain link is of a spherical raised head structure, the other end of each chain link is of a spherical concave cavity structure, and the diameter of the opening of each spherical concave cavity is smaller than that of each spherical raised head; the chain links are made of plastics.
The chain links are made of POM plastic materials.
The single chain is a long chain structure formed by embedding and connecting a plurality of chain links end to end.
The ring chain is a closed-loop chain structure formed by embedding and connecting a plurality of chain links end to end.
The outer layer of the single chain or the ring chain is coated with a flexible wrapping layer.
The flexible wrapping layer is a sponge hose.
The fixing method is one or more of knee joint fixation, neck fixation and body part fixation.
The method for fixing the knee joint comprises the following steps:
(1) pressing the spherical raised head of the previous chain link into the spherical concave cavity of the next chain link by using a tool to form a ring chain with the circumference of 1 m;
(2) when the magnetic resonance knee joint scanning is carried out, the flexible coil is wrapped around the knee joint;
(3) then wrapping the ring chain on the outer side of the flexible coil, and inward hooping with proper force, wherein the hooped shape of the ring chain is kept unchanged after the hand is loosened;
(4) performing magnetic resonance knee joint scanning;
(5) and after the scanning is finished, opening the ring chain and taking the flexible coil away.
The method for fixing the neck comprises the following steps:
(1) pressing the spherical raised head of the previous chain link into the spherical concave cavity of the next chain link by using a tool to form a ring chain with the circumference of 0.9 m;
(2) when the magnetic resonance neck scanning is carried out, the flexible coil is firstly attached to the neck;
(3) then wrapping the ring chain on the outer side of the flexible coil, pressing the two sides of the ring chain downwards with proper force to enable the ring chain to be attached to the position of the neck, and keeping the attachment state of the ring chain unchanged after the hand is released;
(4) performing magnetic resonance neck scanning;
(5) and after the scanning is finished, opening the ring chain and taking the flexible coil away.
The method for fixing the body part comprises the following steps:
(1) splicing a plurality of chain links, double-end chain links and four-way chain links to form a latticed chain by using a tool, wherein the latticed chain is provided with four long chains in the left-right direction and five long chains in the front-back direction, the cross positions are connected by using the double-end chain links and the four-way chain links, the left-right width of the latticed chain is 50 cm, and the front-back length of the latticed chain is 40 cm;
(2) when magnetic resonance chest scanning is carried out, a patient lies on a sickbed, and the flexible coil is placed on a part to be detected on a human body;
(3) then the latticed chain is placed on the flexible coil, and the two hands press downwards with proper force on the two sides and the periphery of the latticed chain to enable the latticed chain to be attached to a body, and after the hands are loosened, the latticed chain keeps the attached state;
(4) performing magnetic resonance scanning;
(5) and after the scanning is finished, opening the latticed chain, and taking the flexible coil away.
The double-end chain link is of a spherical raised head structure with the head end and the tail end, and the bottoms of the two spherical raised heads are fixedly connected.
The four-way chain link is provided with spherical concave cavities at the periphery, and the bottoms of the four spherical concave cavities are fixedly connected.
Compared with the prior art, the invention provides a device and a method for fixing a magnetic resonance flexible radio frequency coil, wherein a main body part is formed by splicing a plurality of chain links with simple structures end to form a long chain or a ring chain, or is spliced into more complicated shapes such as a grid and the like with the help of auxiliary chain links with other similar principles, and can be conveniently bent and deformed into any required shape at will, so that the coil can be fixed on a patient.
The device has the advantages of simple structure, low cost, convenient use and strong universality.
Drawings
FIG. 1 is a schematic view of a link structure according to the present invention.
Fig. 2 and 3 are schematic views of the knee joint fixation method of the present invention.
Fig. 4 and 5 are schematic views of the neck fixing mode of the invention.
Fig. 6 and 7 are schematic views of the body part fixing mode of the invention.
FIG. 8 is a schematic diagram of a splicing structure of chain links, double-ended chain links and four-way chain links.
Figure 9 is a schematic diagram of a double head link configuration.
FIG. 10 is a schematic view of a four-way link configuration.
Referring to fig. 1, 1 is a chain link, 1-1 is a spherical raised head, and 1-2 is a spherical concave cavity.
Detailed Description
The invention is further illustrated below with reference to the accompanying drawings.
As shown in FIG. 1, the device of the present invention comprises a single or endless chain consisting of chain links 1 connected end to end; one end of the chain link 1 is in a spherical raised head 1-1 structure, the other end of the chain link is in a spherical concave cavity 1-2 structure, and the diameter of the opening of the spherical concave cavity 1-2 is smaller than that of the spherical raised head 1-1; the spherical raised head 1-1 of one chain link can be pressed into the spherical concave cavity 1-2 of another chain link with the help of a tool, the inner diameter of the spherical concave cavity 1-2 is equal to that of the spherical raised head 1-1, so that the spherical concave cavity 1-2 can tightly hoop the spherical raised head 1-1 and can rotate or twist under the action of external force. A plurality of chain links are connected end to form the ring chain. The ring chain can be deformed into any required shape under the action of external force, and the shape is kept unchanged after the external force is removed.
The chain links 1 are made of POM plastic material.
The outer layer of the single chain or the ring chain is coated with a flexible wrapping layer which is a sponge hose.
The fixing method of the invention is one or more of knee joint fixation, neck fixation and body part fixation.
As shown in fig. 2 and 3, several tens of links are combined into one link chain, and the circumferential length of the link chain is about 1 m. When the magnetic resonance knee joint scanning is carried out, the flexible coil is wrapped around the knee joint; then wrapping the ring chain on the outer side of the flexible coil, and inward hooping with proper force, wherein the hooped shape of the ring chain is kept unchanged after the hand is loosened; performing magnetic resonance knee joint scanning; and after the scanning is finished, opening the ring chain and taking the flexible coil away.
In order to increase comfort, a flexible wrapping layer can be sleeved on the outer surface of the long chain or the ring chain, for example, a sponge hose can be sleeved on the outer surface of the long chain or the ring chain, or the long chain or the ring chain can be packaged in a flexible wrapping layer by using a flexible packaging process of a flexible radio frequency coil.
As shown in fig. 4 and 5, the spherical convex head of the previous chain link is pressed into the spherical concave cavity of the next chain link by using a tool to form a ring chain with the circumference of 0.9 m; when the magnetic resonance neck scanning is carried out, the flexible coil is firstly attached to the neck; then wrapping the ring chain on the outer side of the flexible coil, pressing the two sides of the ring chain downwards with proper force to enable the ring chain to be attached to the position of the neck, and keeping the attachment state of the ring chain unchanged after the hand is released; performing magnetic resonance neck scanning; and after the scanning is finished, opening the ring chain and taking the flexible coil away.
In order to increase comfort, a flexible wrapping layer can be sleeved on the outer surface of the long chain or the ring chain, for example, a sponge hose can be sleeved on the outer surface of the long chain or the ring chain, or the long chain or the ring chain can be packaged in a flexible wrapping layer by using a flexible packaging process of a flexible radio frequency coil.
As shown in fig. 6 to 8, a plurality of chain links, double-headed chain links and four-way chain links are spliced by a tool to form a grid chain, the grid chain has four long chains in the left-right direction and five long chains in the front-back direction, the cross positions are connected by the double-headed chain links and the four-way chain links, the left-right width of the grid chain is 50 cm, and the front-back length of the grid chain is 40 cm; when magnetic resonance chest scanning is carried out, a patient lies on a sickbed, and the flexible coil is placed on a part to be detected on a human body; then the latticed chain is placed on the flexible coil, and the two hands press downwards with proper force on the two sides and the periphery of the latticed chain to enable the latticed chain to be attached to a body, and after the hands are loosened, the latticed chain keeps the attached state; performing magnetic resonance scanning; and after the scanning is finished, opening the latticed chain, and taking the flexible coil away.
In order to increase comfort, each single chain of the grid can be sleeved with a flexible wrapping layer, for example, a sponge hose can be sleeved, or the grid can be packaged in a flexible cover by using a flexible packaging process of a flexible radio-frequency coil.
As shown in fig. 9, the double-headed chain link is of a structure that the head end and the tail end are respectively provided with spherical raised heads 1-1, and the bottoms of the two spherical raised heads 1-1 are fixedly connected.
As shown in figure 10, the four-way chain link is provided with spherical cavities 1-2 at the periphery respectively, and the bottoms of the four spherical cavities 1-2 are fixedly connected.
The main body part of the invention is formed by splicing a plurality of chain links with simple structures end to form a long chain or a ring chain, or is spliced into more complicated shapes such as a grid and the like with the help of auxiliary chain links with other similar principles, and can be conveniently bent and deformed into any required shape at will, thereby fixing the coil on the body of a patient. The device has the advantages of simple structure, low cost, convenient use and strong universality.
Claims (12)
1. An apparatus for securing a magnetic resonance flexible radio frequency coil, comprising a link, characterized in that: the device comprises a single chain or a ring chain formed by connecting chain links (1) end to end; one end of each chain link (1) is in a spherical raised head (1-1) structure, the other end of each chain link is in a spherical concave cavity (1-2) structure, and the diameter of the opening of each spherical concave cavity (1-2) is smaller than that of each spherical raised head (1-1); the chain link (1) is made of plastic.
2. An apparatus for mounting a magnetic resonance flexible radio frequency coil as claimed in claim 1, wherein: the chain link (1) is made of POM plastic material.
3. An apparatus for mounting a magnetic resonance flexible radio frequency coil as claimed in claim 1, wherein: the single chain is a long chain structure formed by embedding and connecting a plurality of chain links (1) end to end.
4. An apparatus for mounting a magnetic resonance flexible radio frequency coil as claimed in claim 1, wherein: the ring chain is a closed ring chain structure formed by embedding and connecting a plurality of chain links (1) end to end.
5. An apparatus for mounting a magnetic resonance flexible radio frequency coil as claimed in claim 1, wherein: the outer layer of the single chain or the ring chain is coated with a flexible wrapping layer.
6. An apparatus for mounting a magnetic resonance flexible radio frequency coil as claimed in claim 5, wherein: the flexible wrapping layer is a sponge hose.
7. A method of fixing a magnetic resonance flexible radio frequency coil, characterized by: the fixing method is one or more of knee joint fixation, neck fixation and body part fixation.
8. A method of fixing a magnetic resonance flexible radio frequency coil according to claim 7, characterized in that: the method for fixing the knee joint comprises the following steps:
(1) pressing the spherical raised head of the previous chain link into the spherical concave cavity of the next chain link by using a tool to form a ring chain with the circumference of 1 m;
(2) when the magnetic resonance knee joint scanning is carried out, the flexible coil is wrapped around the knee joint;
(3) then wrapping the ring chain on the outer side of the flexible coil, and inward hooping with proper force, wherein the hooped shape of the ring chain is kept unchanged after the hand is loosened;
(4) performing magnetic resonance knee joint scanning;
(5) and after the scanning is finished, opening the ring chain and taking the flexible coil away.
9. A method of fixing a magnetic resonance flexible radio frequency coil according to claim 7, characterized in that: the method for fixing the neck comprises the following steps:
(1) pressing the spherical raised head of the previous chain link into the spherical concave cavity of the next chain link by using a tool to form a ring chain with the circumference of 0.9 m;
(2) when the magnetic resonance neck scanning is carried out, the flexible coil is firstly attached to the neck;
(3) then wrapping the ring chain on the outer side of the flexible coil, pressing the two sides of the ring chain downwards with proper force to enable the ring chain to be attached to the position of the neck, and keeping the attachment state of the ring chain unchanged after the hand is released;
(4) performing magnetic resonance neck scanning;
(5) and after the scanning is finished, opening the ring chain and taking the flexible coil away.
10. A method of fixing a magnetic resonance flexible radio frequency coil according to claim 7, characterized in that: the method for fixing the body part comprises the following steps:
(1) splicing a plurality of chain links, double-end chain links and four-way chain links to form a latticed chain by using a tool, wherein the latticed chain is provided with four long chains in the left-right direction and five long chains in the front-back direction, the cross positions are connected by using the double-end chain links and the four-way chain links, the left-right width of the latticed chain is 50 cm, and the front-back length of the latticed chain is 40 cm;
(2) when magnetic resonance chest scanning is carried out, a patient lies on a sickbed, and the flexible coil is placed on a part to be detected on a human body;
(3) then the latticed chain is placed on the flexible coil, and the two hands press downwards with proper force on the two sides and the periphery of the latticed chain to enable the latticed chain to be attached to a body, and after the hands are loosened, the latticed chain keeps the attached state;
(4) performing magnetic resonance scanning;
(5) and after the scanning is finished, opening the latticed chain, and taking the flexible coil away.
11. A method of fixing a magnetic resonance flexible radio frequency coil as claimed in claim 10, wherein: the double-end chain link is in a structure that the head end and the tail end are respectively provided with spherical raised heads (1-1), and the bottoms of the two spherical raised heads (1-1) are fixedly connected.
12. A method of fixing a magnetic resonance flexible radio frequency coil as claimed in claim 10, wherein: the four-way chain link is characterized in that the periphery of the four-way chain link is respectively provided with spherical concave cavities (1-2), and the bottoms of the four spherical concave cavities (1-2) are fixedly connected.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110728224.4A CN113558604B (en) | 2021-06-29 | 2021-06-29 | Device and method for fixing magnetic resonance flexible radio frequency coil |
| PCT/CN2022/099321 WO2023273910A1 (en) | 2021-06-29 | 2022-06-17 | Device and method for fixing magnetic resonance flexible radio frequency coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110728224.4A CN113558604B (en) | 2021-06-29 | 2021-06-29 | Device and method for fixing magnetic resonance flexible radio frequency coil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113558604A true CN113558604A (en) | 2021-10-29 |
| CN113558604B CN113558604B (en) | 2023-11-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110728224.4A Active CN113558604B (en) | 2021-06-29 | 2021-06-29 | Device and method for fixing magnetic resonance flexible radio frequency coil |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN113558604B (en) |
| WO (1) | WO2023273910A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023273910A1 (en) * | 2021-06-29 | 2023-01-05 | 上海辰光医疗科技股份有限公司 | Device and method for fixing magnetic resonance flexible radio frequency coil |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1061207A (en) * | 1963-07-15 | 1967-03-08 | Drahtwerk C S Schmidt Ag | Ball-jointed link chain |
| DE4446499A1 (en) * | 1994-12-23 | 1996-06-27 | Plueco Spielwaren Gmbh | Bead-shaped links used for making flexible strings esp. for toys |
| CN101361658A (en) * | 2007-07-05 | 2009-02-11 | 西门子公司 | Arrangement and support device for attaching local coils in a magnetic resonance apparatus |
| CN103208671A (en) * | 2012-01-17 | 2013-07-17 | 西门子公司 | Elastic Antenna System For A Magnetic Resonance Imaging System |
| CN110891474A (en) * | 2017-08-01 | 2020-03-17 | 南安普敦大学 | Wearable antenna and intrauterine monitoring system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113558604B (en) * | 2021-06-29 | 2023-11-03 | 上海辰光医疗科技股份有限公司 | Device and method for fixing magnetic resonance flexible radio frequency coil |
-
2021
- 2021-06-29 CN CN202110728224.4A patent/CN113558604B/en active Active
-
2022
- 2022-06-17 WO PCT/CN2022/099321 patent/WO2023273910A1/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1061207A (en) * | 1963-07-15 | 1967-03-08 | Drahtwerk C S Schmidt Ag | Ball-jointed link chain |
| DE4446499A1 (en) * | 1994-12-23 | 1996-06-27 | Plueco Spielwaren Gmbh | Bead-shaped links used for making flexible strings esp. for toys |
| CN101361658A (en) * | 2007-07-05 | 2009-02-11 | 西门子公司 | Arrangement and support device for attaching local coils in a magnetic resonance apparatus |
| CN103208671A (en) * | 2012-01-17 | 2013-07-17 | 西门子公司 | Elastic Antenna System For A Magnetic Resonance Imaging System |
| CN110891474A (en) * | 2017-08-01 | 2020-03-17 | 南安普敦大学 | Wearable antenna and intrauterine monitoring system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023273910A1 (en) * | 2021-06-29 | 2023-01-05 | 上海辰光医疗科技股份有限公司 | Device and method for fixing magnetic resonance flexible radio frequency coil |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113558604B (en) | 2023-11-03 |
| WO2023273910A1 (en) | 2023-01-05 |
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