CN113558604B - 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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- CN113558604B CN113558604B CN202110728224.4A CN202110728224A CN113558604B CN 113558604 B CN113558604 B CN 113558604B CN 202110728224 A CN202110728224 A CN 202110728224A CN 113558604 B CN113558604 B CN 113558604B
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- chain
- magnetic resonance
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- links
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- 238000000034 method Methods 0.000 title claims abstract description 36
- 239000004033 plastic Substances 0.000 claims abstract description 6
- 229920003023 plastic Polymers 0.000 claims abstract description 6
- 210000000629 knee joint Anatomy 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 7
- 238000002595 magnetic resonance imaging Methods 0.000 description 3
- 239000011247 coating layer Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 230000007547 defect 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
- 238000009459 flexible packaging Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Classifications
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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 links, characterized in that: the device comprises a single chain or a loop chain formed by connecting chain links end to end; the chain link is of a spherical convex head structure at one end and a spherical concave cavity structure at the other end, and the diameter of the opening of the spherical concave cavity is smaller than that of the spherical convex 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 have the advantages that the main body part is formed by splicing a plurality of links with simple structures end to end, the main body part is made into a long chain or a loop chain, or the main body part is spliced into more complex shapes such as a grid and the like with the aid of auxiliary links with other similar principles, and the main body part can be very conveniently and randomly bent and deformed into any shape required, 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
The magnetic resonance imaging is an advanced human body nondestructive imaging technology and is widely applied to diagnosis of diseases of various parts of a human body. The magnetic resonance radio frequency coil is an important component of a magnetic resonance imaging system, and the performance of the magnetic resonance radio frequency coil directly determines the quality of magnetic resonance imaging.
In order to obtain better image quality, the coil is generally required to be close to the human body as much as possible. Particularly 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. Because the shapes of all parts of the human body are different, how to quickly and conveniently fix the coil, especially the flexible radio frequency coil, to make the coil be tightly attached to the part to be inspected of the patient as much as possible is always the focus of attention in the technical field of magnetic resonance. The most common method of securing the coil is a strap, typically with a velcro or snap strap, to bind the coil to the patient's body. This method, while simple, is somewhat complex to operate and the strap is easily soiled and difficult to clean. So, many different coil fixing methods (such as the patents of 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 for different coils and different application positions. However, some of these methods are complicated in design, high in cost, complicated in operation, and generally not very versatile.
Especially, in recent years, with the application of the super-soft coil, the coil is popularized, and when the coil is fixed by using the binding bands, because the coil is particularly soft, a plurality of binding bands are needed to be used for fixing simultaneously, otherwise, the size coil of the body coil is warped at the place where the binding bands are not bound, and cannot be close to a human body, so that the image quality is improved.
Disclosure of Invention
The invention provides a device and a method for fixing a magnetic resonance flexible radio frequency coil, which overcome the defects of the prior art, wherein a main body part is formed by splicing a plurality of links with simple structures end to end, and is made into a long chain or a loop chain, and the coil can be very conveniently and randomly bent and deformed into any required shape, so that the coil can be fixed on a patient.
To achieve the above object, a device for fixing a magnetic resonance flexible radio frequency coil is designed, which comprises a chain link, and is characterized in that: the device comprises a single chain or a loop chain formed by connecting chain links end to end; the chain link is of a spherical convex head structure at one end and a spherical concave cavity structure at the other end, and the diameter of the opening of the spherical concave cavity is smaller than that of the spherical convex head; the chain links are made of plastics.
The chain link is made of POM plastic material.
The single chain is a long chain structure formed by embedding and connecting a plurality of chain links end to end.
The loop 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 a combination of a plurality of knee joint fixing, neck fixing and body part fixing.
The knee joint fixing method comprises the following steps:
(1) Pressing the spherical convex head of the previous chain link into the spherical concave cavity of the next chain link by using a tool to form a circular chain with the circumference of 1 meter;
(2) When the magnetic resonance knee joint scanning is carried out, the flexible coil is wrapped around the knee joint;
(3) Then wrapping the loop chain on the outer side of the flexible coil, and tightening inwards with proper force, wherein the loop chain keeps the tightening shape unchanged after the hand is loosened;
(4) Performing magnetic resonance knee joint scanning;
(5) After the scanning is finished, the loop chain is opened, and the flexible coil is taken away.
The neck fixing method comprises the following steps:
(1) Pressing the spherical convex 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 meter;
(2) When magnetic resonance neck scanning is carried out, a flexible coil is firstly attached to the neck position;
(3) Then wrapping the loop chain on the outer side of the flexible coil, and pressing down the two sides of the loop chain with proper force to enable the loop chain to be attached to the neck position, wherein after the hand is loosened, the loop chain is kept unchanged in attaching state;
(4) Performing a magnetic resonance neck scan;
(5) After the scanning is finished, the loop chain is opened, and the flexible coil is taken away.
The body part fixing method comprises the following steps:
(1) The method comprises the steps of utilizing a tool to splice a plurality of chain links, double-head chain links and four-way chain links to form a grid-shaped chain, wherein four long chains are arranged in the left-right direction of the grid-shaped chain, five long chains are arranged in the front-back direction of the grid-shaped chain, the cross parts are connected by the double-head chain links and the four-way chain links, the left-right width of the grid-shaped chain is 50 cm, and the front-back length of the grid-shaped chain is 40 cm;
(2) When performing magnetic resonance chest scanning, a patient lies on a sickbed, and a flexible coil is placed on a part to be detected on a human body;
(3) Then placing the latticed chains on the flexible coil, and pressing down the latticed chains with two hands at two sides and around the latticed chains with proper force to enable the latticed chains to be attached to the body, wherein after the hands are loosened, the latticed chains keep the attached state unchanged;
(4) Performing magnetic resonance scanning;
(5) And after the scanning is finished, opening the grid-shaped chain, and taking away the flexible coil.
The double-end chain links are of a spherical convex head structure at the two ends of the head and the tail respectively, and the bottoms of the two spherical convex heads are fixedly connected.
The four-way chain link is characterized in that four sides of the four-way chain link are respectively provided with a spherical concave cavity, 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 the main body part is formed by splicing a plurality of links with simple structures end to end, and is made into a long chain or a loop chain, or is spliced into more complex shapes such as a grid and the like with the help of auxiliary links with other similar principles, and the device and the method can be very conveniently and randomly bent and deformed into any shape required, 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 chain link structure according to the present invention.
Fig. 2 and 3 are schematic views showing the knee joint fixing method of the present invention.
Fig. 4 and 5 are schematic views of the neck fixing method of the present invention.
Fig. 6 and 7 are schematic views of the body part fixing method of the present invention.
Fig. 8 is a schematic diagram of a splicing structure of a chain link, a double-head chain link and a four-way chain link.
Fig. 9 is a schematic diagram of a double-ended link structure.
Fig. 10 is a schematic view of a four-way link structure.
Referring to fig. 1,1 is a chain link, 1-1 is a spherical boss, and 1-2 is a spherical cavity.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in FIG. 1, the device of the invention comprises a single chain or a circular chain consisting of chain links 1 connected end to end; the chain link 1 is of a structure that one end is a spherical convex head 1-1, the other end is a spherical concave cavity 1-2, and the diameter of an opening of the spherical concave cavity 1-2 is smaller than that of the spherical convex head 1-1; the spherical convex head 1-1 of one chain link can be forced into the spherical concave cavity 1-2 of the other chain link with the help of a tool, the inner diameter of the spherical concave cavity 1-2 is equivalent to the diameter of the spherical convex head 1-1, so that the spherical concave cavity 1-2 can tightly clamp the spherical convex head 1-1 and can rotate or twist under the action of external force. A plurality of chain links are connected end to form a endless 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 link 1 is made of POM plastic material.
The outer layer of the single chain or the endless chain is coated with a flexible coating layer, and the flexible coating layer is a sponge hose.
The fixing method of the invention is one or a combination of a plurality of knee joint fixing, neck fixing and body part fixing.
As shown in fig. 2 and 3, several tens of links are formed into a single endless chain, and the circumference of the endless 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 loop chain on the outer side of the flexible coil, and tightening inwards with proper force, wherein the loop chain keeps the tightening shape unchanged after the hand is loosened; performing magnetic resonance knee joint scanning; after the scanning is finished, the loop chain is opened, and the flexible coil is taken away.
For comfort, a flexible wrapping layer can be sleeved outside the long chain or the endless chain, for example, a sponge hose can be sleeved, or the long chain or the endless chain can be encapsulated in the flexible cover by using a flexible encapsulation process of the 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 circular chain with the circumference of 0.9 meter; when magnetic resonance neck scanning is carried out, a flexible coil is firstly attached to the neck position; then wrapping the loop chain on the outer side of the flexible coil, and pressing down the two sides of the loop chain with proper force to enable the loop chain to be attached to the neck position, wherein after the hand is loosened, the loop chain is kept unchanged in attaching state; performing a magnetic resonance neck scan; after the scanning is finished, the loop chain is opened, and the flexible coil is taken away.
For comfort, a flexible wrapping layer can be sleeved outside the long chain or the endless chain, for example, a sponge hose can be sleeved, or the long chain or the endless chain can be encapsulated in the flexible cover by using a flexible encapsulation process of the flexible radio frequency coil.
As shown in fig. 6 to 8, a plurality of chain links, double-end chain links and four-way chain links are spliced by a tool to form a grid-shaped chain, four long chains are arranged in the left-right direction of the grid-shaped chain, five long chains are arranged in the front-back direction of the grid-shaped chain, the cross positions are connected by the double-end chain links and the four-way chain links, the width of the grid-shaped chain in the left-right direction is 50 cm, and the length of the grid-shaped chain in the front-back direction is 40 cm; when performing magnetic resonance chest scanning, a patient lies on a sickbed, and a flexible coil is placed on a part to be detected on a human body; then placing the latticed chains on the flexible coil, and pressing down the latticed chains with two hands at two sides and around the latticed chains with proper force to enable the latticed chains to be attached to the body, wherein after the hands are loosened, the latticed chains keep the attached state unchanged; performing magnetic resonance scanning; and after the scanning is finished, opening the grid-shaped chain, and taking away the flexible coil.
For comfort, a flexible wrapping layer may be further applied to each single strand of the mesh, such as a sponge hose, or a flexible packaging process using a flexible rf coil may be used to encapsulate the mesh within the flexible sheath.
As shown in fig. 9, the double-head chain link has a structure that the head end and the tail end are respectively provided with a spherical convex head 1-1, and the bottoms of the two spherical convex heads 1-1 are fixedly connected.
As shown in fig. 10, the four-way chain link is provided with round sphere-shaped concave cavities 1-2 at the periphery, and the bottoms of the four round sphere-shaped concave 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 end, and is made into a long chain or a loop chain, or is spliced into more complex shapes such as a grid and the like with the help of auxiliary chain links with other similar principles, and the main body part can be very conveniently and randomly bent and deformed into any shape required, thereby fixing the coil on a patient. The device has the advantages of simple structure, low cost, convenient use and strong universality.
Claims (11)
1. An apparatus for securing a magnetic resonance flexible radio frequency coil comprising links, characterized in that: the device comprises a single chain or a loop chain formed by connecting chain links (1) end to end; the chain link (1) is of a spherical convex head (1-1) structure at one end, a spherical concave cavity (1-2) structure at the other end, and the diameter of the opening of the spherical concave cavity (1-2) is smaller than that of the spherical convex head (1-1); the chain link (1) is made of plastic; the fixing method of the device is one or a combination of a plurality of knee joint fixing, neck fixing and body part fixing.
2. An apparatus for securing a magnetic resonance flexible radio frequency coil as set forth in claim 1, wherein: the chain link (1) is made of POM plastic material.
3. An apparatus for securing a magnetic resonance flexible radio frequency coil as set forth in claim 1, wherein: the single chain is of a long chain structure formed by embedding and connecting a plurality of chain links (1) end to end.
4. An apparatus for securing a magnetic resonance flexible radio frequency coil as set forth in claim 1, wherein: the loop chain is a closed loop chain structure formed by embedding and connecting a plurality of chain links (1) end to end.
5. An apparatus for securing a magnetic resonance flexible radio frequency coil as set forth 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 securing a magnetic resonance flexible radio frequency coil as recited in claim 5, further comprising: the flexible wrapping layer is a sponge hose.
7. A method of securing a magnetic resonance flexible radio frequency coil using the apparatus of claim 1, wherein: the knee joint fixing method comprises the following steps:
(1) The tool is used to press the spherical convex head of the previous chain link into the spherical concave cavity of the next chain link,
forming a loop chain with a circumference of 1 meter;
(2) When the magnetic resonance knee joint scanning is carried out, the flexible coil is wrapped around the knee joint;
(3) Then wrapping the loop chain on the outer side of the flexible coil, and tightening inwards with proper force, wherein the loop chain keeps the tightening shape unchanged after the hand is loosened;
(4) Performing magnetic resonance knee joint scanning;
(5) After the scanning is finished, the loop chain is opened, and the flexible coil is taken away.
8. The method according to claim 7, wherein: the neck fixing method comprises the following steps:
(1) The tool is used to press the spherical convex head of the previous chain link into the spherical concave cavity of the next chain link,
forming a loop chain with a circumference of 0.9 meter;
(2) When magnetic resonance neck scanning is carried out, a flexible coil is firstly attached to the neck position;
(3) Then wrapping the loop chain on the outer side of the flexible coil, and pressing down the two sides of the loop chain with proper force to enable the loop chain to be attached to the neck position, wherein after the hand is loosened, the loop chain is kept unchanged in attaching state;
(4) Performing a magnetic resonance neck scan;
(5) After the scanning is finished, the loop chain is opened, and the flexible coil is taken away.
9. The method according to claim 7, wherein: the body part fixing method comprises the following steps:
(1) The method comprises the steps of utilizing a tool to splice a plurality of chain links, double-head chain links and four-way chain links to form a grid-shaped chain, wherein four long chains are arranged in the left-right direction of the grid-shaped chain, five long chains are arranged in the front-back direction of the grid-shaped chain, the cross parts are connected by the double-head chain links and the four-way chain links, the left-right width of the grid-shaped chain is 50 cm, and the front-back length of the grid-shaped chain is 40 cm;
(2) When performing magnetic resonance chest scanning, a patient lies on a sickbed, and a flexible coil is placed on a part to be detected on a human body;
(3) Then placing the latticed chains on the flexible coil, and pressing down the latticed chains with two hands at two sides and around the latticed chains with proper force to enable the latticed chains to be attached to the body, wherein after the hands are loosened, the latticed chains keep the attached state unchanged;
(4) Performing magnetic resonance scanning;
(5) And after the scanning is finished, opening the grid-shaped chain, and taking away the flexible coil.
10. The method according to claim 9, wherein: the double-end chain link is of a spherical convex head (1-1) structure at the two ends of the head and the tail respectively, and the bottoms of the two spherical convex heads (1-1) are fixedly connected.
11. The method according to claim 9, wherein: the four-way chain link is characterized in that the four sides of the four-way chain link are respectively provided with a spherical concave cavity (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 CN113558604A (en) | 2021-10-29 |
| CN113558604B true 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) |
Families Citing this family (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 |
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 |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023273910A1 (en) | 2023-01-05 |
| CN113558604A (en) | 2021-10-29 |
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