CN111077484A - Adjustable nuclear magnetic resonance carotid artery imaging coil device - Google Patents
Adjustable nuclear magnetic resonance carotid artery imaging coil device Download PDFInfo
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- CN111077484A CN111077484A CN201911252372.2A CN201911252372A CN111077484A CN 111077484 A CN111077484 A CN 111077484A CN 201911252372 A CN201911252372 A CN 201911252372A CN 111077484 A CN111077484 A CN 111077484A
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- support
- coil
- fixedly connected
- adjustable
- rotating shaft
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
- G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
- G01R33/34—Constructional details, e.g. resonators, specially adapted to MR
- G01R33/34046—Volume type coils, e.g. bird-cage coils; Quadrature bird-cage coils; Circularly polarised coils
-
- 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 discloses an adjustable nuclear magnetic resonance carotid artery imaging coil device, and relates to the technical field of nuclear magnetic resonance imaging. The invention includes a substrate; an interface box is fixed on one surface of the substrate; balun components are fixed on both sides of the interface box; the opposite ends of the substrate are respectively fixed with a first support; the first support is rotatably connected with a guide rail bracket; a slide bar is connected on the guide rail frame in a sliding way; the peripheral side surface of the slide bar is in sliding fit with a slide seat; a guide rod is inserted on the sliding seat in a matching way; one end of the guide rod is movably connected with a coil box; the coil box is connected with the balun component through a second lead; limiting strips are embedded in the peripheral surface of the guide rod; one surface of the sliding seat is fixedly connected with a locking mechanism matched with the limiting strip. According to the invention, the movably connected guide rail frame is arranged on the substrate, the guide rail frame, the sliding rod and the sliding seat are used for driving the guide rod provided with the coil box to move to the neck of a patient, and the guide rod is fixed by the locking mechanism, so that the imaging quality of the nuclear magnetic resonance coil is effectively improved, and the nuclear magnetic resonance coil is suitable for popularization.
Description
Technical Field
The invention belongs to the technical field of nuclear magnetic resonance imaging, and particularly relates to an adjustable nuclear magnetic resonance carotid artery imaging coil device.
Background
According to the statistics of hospital studies, stroke has historically been one of the major diseases responsible for human death. Medical studies have shown that a person at risk of or having suffered a stroke can be diagnosed by imaging the carotid artery and analyzing the carotid artery image, i.e. analyzing the shape and composition of blood vessels, vessel walls, and dangerous lipid plaques, etc. Among the imaging techniques, magnetic resonance carotid artery imaging is favored by physicians and patients due to its advantages of good tissue resolution, non-invasive and non-radioactive properties, convenience and rapidity. For better diagnostic results, the clinical image needs to have a sufficiently high signal-to-noise ratio and resolution, and generally the penetration of the coil with a smaller area is not strong enough, but there is a high signal-to-noise ratio and a high resolution near the coil unit, and the carotid artery is just close to the surface of the neck, so the coil unit with a smaller area is the primary choice for imaging the carotid artery.
And the carotid artery coil that is applied to magnetic resonance imaging at present is mostly head and neck combined coil device, the neck coil of this kind of structure is imaged and is encircleed around patient's neck often, but its structure size is fixed, consequently can have certain distance with patient's neck, the coil can not perfectly be laminated with patient's neck, especially will produce bigger distance to the thinner patient of neck, reduce final imaging quality, and this kind of structure is whole comparatively heavy to carotid artery imaging, it is comparatively loaded down with trivial details to use. Therefore, it is necessary to develop an adjustable coil device for magnetic resonance carotid artery imaging to overcome the defects in the prior art.
Disclosure of Invention
The invention aims to provide an adjustable nuclear magnetic resonance carotid artery imaging coil device, which solves the problems in the prior art by arranging a movably connected guide rail frame on a substrate, driving a guide rod provided with a coil box to move to the neck of a patient by using the guide rail frame, a sliding rod and a sliding seat, and fixing the guide rod by using a locking mechanism.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to an adjustable nuclear magnetic resonance carotid artery imaging coil device, which comprises a substrate; an interface box for installing a control circuit board is fixedly connected to one surface of the substrate; a balun component is fixedly connected to both sides of the interface box; the balun component is connected with the interface box through a first lead; a first support is fixedly connected to one opposite end of the substrate; a guide rail bracket is rotationally connected in the first support; the guide rail frame is connected with a sliding rod in a sliding manner; the peripheral side surface of the sliding rod is in sliding fit with a sliding seat; a guide rod is inserted on the sliding seat in a matching way; one end of the guide rod is movably connected with a coil box for installing a coil; the coil box is connected with the balun component through a second lead; a limiting strip is embedded in the peripheral surface of the guide rod; and one surface of the sliding seat is fixedly connected with a locking mechanism matched with the limiting strip.
Furthermore, a buffer pad is arranged on one surface of the substrate; the buffer pad is made of rubber.
Furthermore, a joint matched with imaging equipment of the nuclear magnetic system is arranged on the interface box.
Furthermore, the guide rail bracket comprises support rails and a first rotating shaft, and the two support rails are respectively and correspondingly fixed at the end part of the first rotating shaft; and one surface of each of the two support rails close to each other is provided with a guide groove matched with the slide bar.
Further, the support rail is of a circular arc structure; the end parts of the two support rails positioned on the same side are connected through a connecting rod; the connecting rod, the supporting rail and the first rotating shaft form a square structure.
Furthermore, a first brake is arranged on one side surface of the first support; the output end of the first brake is fixedly connected with one end of the first rotating shaft.
Furthermore, a first through hole matched with the sliding rod is formed in one surface of the sliding seat; and a second through hole matched with the guide rod is formed in the other surface of the sliding seat.
Further, the locking mechanism comprises a fixing plate, a second support and a second brake; the fixed plate is fixedly connected to one surface of the sliding seat; the second support is fixedly connected to one surface of the fixing plate; a second rotating shaft is rotatably connected to the second support; the peripheral side surface of the second rotating shaft is fixedly connected with a driving wheel matched with the limiting strip; the second brake is fixedly connected to one surface of the second support; and the output end of the second brake is connected with one end of the second rotating shaft.
Further, the driving wheel adopts a gear; the limiting strip is a rack.
Furthermore, a flexible pad is arranged on one surface of each coil box close to the other surface of each coil box; the flexible pad is made of skin-friendly materials.
Furthermore, the guide rod and the coil box are matched in a ball pair mode.
The invention has the following beneficial effects:
1. the invention can meet the use requirements of medical personnel and patients by arranging the movably connected guide rail frame on the base plate, and ensures the structural stability and strength of the guide rail frame by arranging the guide rail frame with the square-shaped structure, and has simple and practical design, convenient assembly and disassembly and low maintenance cost.
2. According to the invention, based on the structural characteristics of the guide rail frame, the guide rod provided with the coil box is driven to move to the neck of the patient by the slide rod and the slide seat, and the guide rod is fixed by the locking mechanism, so that the imaging quality of the nuclear magnetic resonance coil is effectively improved, and the working efficiency of medical staff is ensured.
3 the invention realizes the accurate and stable movement of the coil box by utilizing the meshing principle of the gear rack mechanism, and ensures the stable matching of the driving wheel and the limiting strip, thereby improving the practical value and the economic benefit of the device.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of an adjustable MRI coil apparatus according to the present invention;
FIG. 2 is a side view of the structure of FIG. 1;
FIG. 3 is a schematic structural diagram of a guide rail bracket of an adjustable MRI coil apparatus according to the present invention;
FIG. 4 is a schematic structural diagram of a slide carriage of an adjustable MRI coil apparatus according to the present invention;
fig. 5 is a schematic structural diagram of a guide rod of an adjustable mri carotid artery imaging coil apparatus according to the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1-substrate, 2-interface box, 3-balun component, 4-guide rail frame, 5-slide bar, 6-slide seat, 7-guide bar, 8-locking mechanism, 9-coil box, 101-first support, 102-buffer pad, 103-first brake, 201-joint, 301-first conducting wire, 401-support rail, 402-first rotating shaft, 403-connecting rod, 601-first through hole, 602-second through hole, 701-limiting strip, 801-fixing plate, 802-second support, 803-second brake, 804-second rotating shaft, 805-driving wheel, 901-second conducting wire, 902-flexible pad, 4011-guide groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.
Referring to fig. 1-5, the present invention is an adjustable mri coil apparatus, including a substrate 1; the base plate 1 adopts an arc structure, can be matched with the shape of a human body, and meets the use requirements of a patient.
As shown in fig. 1, an interface box 2 for mounting a control circuit board is fixedly connected to one surface of a substrate 1; both sides of the interface box 2 are fixedly connected with a balun component 3; the balun component 3 is connected to the interface box 2 by a first line 301.
As shown in fig. 2, a first support 101 is fixedly connected to each of opposite ends of the substrate 1; a guide rail bracket 4 is rotationally connected in the first support 101; the guide rail frame 4 is connected with a slide bar 5 in a sliding way; the cross section of the sliding rod 5 is of a polygonal structure or a circular structure; the peripheral side surface of the slide bar 5 is in sliding fit with a slide seat 6.
As shown in fig. 1, a guide rod 7 is inserted into the slide carriage 6; one end of the guide rod 7 is movably connected with a coil box 9 for installing a coil; the coil case 9 is connected to the balun member 3 by a second wire 901.
Wherein, a limit strip 701 is embedded in the peripheral surface of the guide rod 7; a slide 6 fixed surface is connected with one and spacing strip 701 matched with mechanism 8 of being locked, and the cooperation of mechanism 8 of being locked and spacing strip 701 can realize the fixed to coil box 9 optional position to satisfy different patients' user demand.
Wherein, a buffer pad 102 is disposed on a surface of the substrate 1; the cushion 102 is made of rubber to improve the protection of the device against the neck of the patient.
Wherein, the interface box 2 is provided with a connector 201 matched with the imaging equipment of the nuclear magnetic system.
As shown in fig. 3, the guide rail bracket 4 includes a support rail 401 and a first rotating shaft 402, and the two support rails 401 are respectively fixed at the ends of the first rotating shaft 402; one surface of each of the two support rails 401 is provided with a guide groove 4011 matched with the slide bar 5.
As shown in fig. 3, the support rail 401 has a circular arc structure; the ends of the two support rails 401 on the same side are connected by a connecting rod 403; the connecting rod 403, the support rail 401 and the first rotating shaft 402 form a square structure, which increases the structural stability of the guide rail frame 4.
Wherein, a first brake 103 is arranged on one side surface of the first support 101; the output end of the first brake 103 is fixedly connected with one end of the first rotating shaft 402, and the position of the guide rail frame 4 is controlled by the first brake 103, so that the practical value of the guide rail frame 4 is ensured.
As shown in fig. 4, a first through hole 601 matching with the sliding rod 5 is formed on one surface of the sliding seat 6; the other surface of the slide 6 is provided with a second through hole 602 matching with the guide rod 7.
As shown in fig. 2, the locking mechanism 8 includes a fixing plate 801, a second support 802 and a second stopper 803; the fixing plate 801 is fixedly connected to one surface of the sliding seat 6; the second support 802 is fixedly connected to one surface of the fixing plate 801; the second support 802 is rotatably connected with a second rotating shaft 804; a driving wheel 805 matched with the limiting strip 701 is fixedly connected to the peripheral side surface of the second rotating shaft 804; the second stopper 803 is fixedly connected to a surface of the second support 802; the output end of the second brake 803 is connected to one end of the second rotating shaft 804.
Wherein, the driving wheel 805 adopts a gear; the limiting strips 701 adopt racks; by utilizing the meshing principle of the gear rack mechanism, the stable matching between the driving wheel 805 and the limiting strip 701 is ensured, so that the practical value of the device is improved.
Wherein, a flexible pad 902 is arranged on one surface of the two coil boxes 9; the flexible pad 902 is made of skin-friendly material, which meets the use requirements of patients.
One specific application of this embodiment is: the base plate 1 is fixed on a sickbed or a wall surface, the back of the neck of a patient is attached to the surface of the base plate 1, and the guide rail frame 4 is rotated, moved to a proper position and then fixed at the position of the guide rail frame 4 through the first brake 103; the positions of the sliding rod 5 and the sliding seat 6 are moved, and the coil box 9 is driven by the driving wheel 805 to move the coil box 9 at the end part of the guide rod 7 to the neck of the patient after moving to the designated position; the connector 201 on the interface box 2 is inserted into the imaging device of the nuclear magnetic system, and the scanning is started.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (10)
1. An adjustable nuclear magnetic resonance carotid artery imaging coil device is characterized by comprising a substrate (1);
an interface box (2) for installing a control circuit board is fixedly connected to one surface of the substrate (1); both sides of the interface box (2) are fixedly connected with a balun component (3); the balun component (3) is connected with the interface box (2) through a first lead (301);
one opposite end part of the substrate (1) is fixedly connected with a first support (101); a guide rail bracket (4) is rotationally connected in the first support (101); the guide rail frame (4) is connected with a slide bar (5) in a sliding way; the peripheral side surface of the slide bar (5) is in sliding fit with a slide seat (6);
wherein a guide rod (7) is inserted on the sliding seat (6) in a matching way; one end of the guide rod (7) is movably connected with a coil box (9) for installing a coil; the coil box (9) is connected with the balun component (3) through a second lead (901);
wherein, a limit strip (701) is embedded in the peripheral side surface of the guide rod (7);
wherein, a surface of the sliding seat (6) is fixedly connected with a locking mechanism (8) matched with the limiting strip (701).
2. The adjustable MRI coil apparatus according to claim 1, wherein a cushion (102) is disposed on a surface of the base plate (1); the buffer pad (102) is made of rubber.
3. The adjustable MRI coil device according to claim 1, wherein the interface box (2) is provided with a connector (201) for cooperating with an MRI apparatus.
4. The adjustable nuclear magnetic resonance carotid artery imaging coil device according to claim 1, wherein the guide rail frame (4) comprises a support rail (401) and a first rotating shaft (402), and the two support rails (401) are respectively fixed at the end of the first rotating shaft (402); one surface of the two support rails (401) close to each other is provided with a guide groove (4011) matched with the slide bar (5).
5. The adjustable MRI coil device according to claim 4, wherein the support rail (401) has a circular arc structure; the end parts of the two support rails (401) which are positioned at the same side are connected through a connecting rod (403); the connecting rod (403), the supporting rail (401) and the first rotating shaft (402) form a square structure.
6. The adjustable MRI coil apparatus according to claim 1, wherein a first brake (103) is disposed on one side of the first support (101); the output end of the first brake (103) is fixedly connected with one end of a first rotating shaft (402).
7. The adjustable MRI coil device according to claim 1, wherein a first through hole (601) matching with the slide bar (5) is formed on one surface of the slide carriage (6); and a second through hole (602) matched with the guide rod (7) is formed in the other surface of the sliding seat (6).
8. The adjustable MRI coil device according to claim 1, wherein the capture mechanism (8) comprises a fixing plate (801), a second support (802) and a second brake (803); the fixing plate (801) is fixedly connected to one surface of the sliding seat (6); the second support (802) is fixedly connected to one surface of the fixing plate (801); a second rotating shaft (804) is rotatably connected to the second support (802); the peripheral side surface of the second rotating shaft (804) is fixedly connected with a driving wheel (805) matched with the limiting strip (701); the second brake (803) is fixedly connected to one surface of the second support (802); the output end of the second brake (803) is connected with one end of a second rotating shaft (804).
9. The adjustable MRI coil apparatus according to claim 8, wherein the driving wheel (805) is a gear; the limiting strips (701) adopt racks.
10. The adjustable MRI coil apparatus according to claim 1, wherein a flexible pad (902) is disposed on a surface of each of the two coil boxes (9) adjacent to each other; the flexible pad (902) is made of skin-friendly materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911252372.2A CN111077484A (en) | 2019-12-09 | 2019-12-09 | Adjustable nuclear magnetic resonance carotid artery imaging coil device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911252372.2A CN111077484A (en) | 2019-12-09 | 2019-12-09 | Adjustable nuclear magnetic resonance carotid artery imaging coil device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111077484A true CN111077484A (en) | 2020-04-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911252372.2A Withdrawn CN111077484A (en) | 2019-12-09 | 2019-12-09 | Adjustable nuclear magnetic resonance carotid artery imaging coil device |
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| CN (1) | CN111077484A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113433043A (en) * | 2021-06-25 | 2021-09-24 | 杭州电子科技大学 | Four solenoid magnetic control formula magnetic droplet testing arrangement |
| CN114264991A (en) * | 2021-11-26 | 2022-04-01 | 深圳市联影高端医疗装备创新研究院 | Mammary gland receiving coil assembly and magnetic resonance imaging equipment |
-
2019
- 2019-12-09 CN CN201911252372.2A patent/CN111077484A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113433043A (en) * | 2021-06-25 | 2021-09-24 | 杭州电子科技大学 | Four solenoid magnetic control formula magnetic droplet testing arrangement |
| CN114264991A (en) * | 2021-11-26 | 2022-04-01 | 深圳市联影高端医疗装备创新研究院 | Mammary gland receiving coil assembly and magnetic resonance imaging equipment |
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Application publication date: 20200428 |