CN102280688A - Magnetic resonance tube cavity antenna device - Google Patents
Magnetic resonance tube cavity antenna device Download PDFInfo
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- CN102280688A CN102280688A CN201110110713XA CN201110110713A CN102280688A CN 102280688 A CN102280688 A CN 102280688A CN 201110110713X A CN201110110713X A CN 201110110713XA CN 201110110713 A CN201110110713 A CN 201110110713A CN 102280688 A CN102280688 A CN 102280688A
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- magnetic resonance
- tube chamber
- seal wire
- resonance tube
- antenna assembly
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Abstract
The invention relates to a magnetic resonance tube cavity antenna device which is used for diagnosing and treating diseases in the blood vessels, esophagus, bronchus, rectum, and the like. The magnetic resonance tube cavity antenna device is characterized by being a tube cavity antenna diagnosis and treatment device which can be used for effectively detecting diseases in tube cavities, such as the blood vessels, and the like and has tiny damages to the human body. By combining the antenna with the magnetic resonance imaging technology, the signal to noise ratio of an image can be improved, and therefore the diagnosis on early lesions in tube cavities, such as the blood vessels in the depths of the human body becomes possible. The magnetic resonance tube cavity antenna device comprises a metal or alloy conducting wire 1 for receiving signals, a tuning matching circuit board 2 and a signal transmission coaxial cable 3. Because the antenna conducting wire has no external shielding, the antenna conducting wire can be made to be thinner, and the longitudinal coverage range of multilayer imaging is also larger. Meanwhile, the conductive wire of the tube cavity antenna can be used as an imaging conducting wire for receiving signals and can be also used as a conducting wire for conveying medicines to a lesion position accurately during treatment. The conducting wire of the magnetic resonance tube cavity antenna can be combined with a low-temperature plasma technology and used for effectively treating diseases in the blood vessels, and the like.
Description
Technical field
The present invention relates to a kind of tube chamber antenna, particularly about a kind of magnetic resonance tube chamber antenna assembly that is used for diagnosing and treating diseases such as blood vessel, esophagus, bronchus, rectum.
Background technology
In the diagnosis and treatment work of human vas especially angiocardiopathy, people are more and more higher to the fail safe and the attention rate of validity of diagnosis.At present, for the diagnosis of angiocardiopathy, traditional clinical method has X-CT and DSA (Digitalsubtraction angiography) method.X-CT is owing to use the X-ray, thus have very strong ionizing radiation, harmful.DSA uses contrast agent (Contrast Agent), and is to handle in the face of imaging results at image processing method to a greater extent, can not be from improving the signal to noise ratio of image in essence.Traditional mr techniques utilizes surface coils also to can be used for the detection of vascular diseases, but is in the blood vessel of human body depths, as cardiovascular, a little less than their the FID signal, through human body decay, the FID signal that receives by surface coils very a little less than, cause signal noise ratio (snr) of image not high, poor image quality.Bad more is that some useful detail signal can fall by complete attenuation, has caused losing of useful signal.Simultaneously, also be for this reason, for the symptom of early stage vascular lesion, utilize surface coils not detect.In addition, for tube chambers such as the esophagus in the human body, bronchus, rectum, mainly be to use endoscopic technique to carry out disease detection at present.But, can not see the deeper pathology that tube chamber is subcutaneous, so certain limitation is all arranged for diagnosis and treatment because endoscope can only be seen the pathology of skin surface in the tube chamber.Simultaneously, some pathology is can not show the supracutaneous of tube chamber in early days, so endoscope can't detect early lesion at all, and by nuclear magnetic resonance technique, uses the tube chamber antenna and just can detect.
Summary of the invention
At the problems referred to above, the purpose of this invention is to provide and a kind ofly can detect tube chamber diseases such as blood vessel safely, effectively, and the magnetic resonance tube chamber antenna diagnostic device very small to injury of human.The tube chamber antenna is as a kind of MR diagnosis and therapeutic system of Wicresoft, can directly go deep into the lesions position detection signal, avoid the signal of tube chambers such as blood vessel, bronchus, rectum to pass through the decay that human body causes, so just can improve signal to noise ratio, make the diagnosis of early lesion of tube chambers such as blood vessel of human body depths become possibility.Simultaneously tube chamber antenna seal wire is except as the imaging guide wire, and the seal wire of the conveying medicine in the time of can also be as treatment is delivered to lesions position exactly to medicine.The seal wire of tube chamber antenna can also and other technology combination, how lower temperature plasma technology combination is effectively treated diseases such as blood vessels.
The present invention is a kind of magnetic resonance tube chamber antenna assembly, comprises metal or alloy antenna seal wire, tuning match circuit plate and signal-transmitting cable.It is characterized in that: described antenna seal wire is maskless, and thickness can be selected.This wire guide is connected with tuning match circuit plate, and tuning match circuit plate is connected with signal-transmitting cable, and signal-transmitting cable is connected with magnetic resonance system, to extract the magnetic resonance signal that the tube chamber antenna receives.
Described a kind of magnetic resonance tube chamber antenna assembly, it is characterized in that: adopt the seal wire design of no external shield, make seal wire can select the diameter of different thicknesses according to clinical requirement, for vascular diagnostic, the seal wire diameter is between the 0.0001-10mm, human body is carried out minimally-invasive treatment, because wound is small, be safe so application tube chamber coil is treated, simultaneously owing to there is not external shield, vertical coverage of its received signal is big, and scope is 0-2m.
Described a kind of magnetic resonance tube chamber antenna assembly is characterized in that: the present invention adopts the antenna seal wire that meets bio-compatibility, and human body is not had rejection and other bad reactions.
Described a kind of magnetic resonance tube chamber antenna assembly, it is characterized in that: the antenna seal wire is the metal or alloy seal wire, and elasticity is good, pliability is good, makes things convenient for tube chamber intervention diagnosis and treatment.
Described a kind of magnetic resonance tube chamber antenna assembly is characterized in that: the components and parts division of labor of tuning match circuit is clear and definite, is convenient to tuning coupling;
Described a kind of magnetic resonance tube chamber antenna assembly is characterized in that: tuning match circuit adopts T or L or π type coupling, regulates simple and convenient.
The present invention in use, antenna seal wire and circuit board are detachable, circuit board and signal transmssion line are detachable.Seal wire can adopt disposable, the abampere that has both guaranteed therapeutic process makes things convenient for doctor's operation again completely without cross-infection, and seal wire also can adopt and be repeatedly used, and convenient experiment is used.
The present invention is simple in structure, and material preparation is easy, makes easily, and cost is low, is easy to carry processing ease.By using thinner high resilience and flexible seal wire, can be used to diagnose and treat the pathology of thin blood vessel, as be used for diseases such as diagnosis and treatment coronary atherosclerosis.Simultaneously, also can be used for the diagnosis and the treatment of trunk and big tube chamber.
Description of drawings
Fig. 1 general construction schematic diagram
Fig. 2 signal receives the guide wire schematic diagram
The tuning match circuit plate structure of Fig. 3 schematic diagram
Fig. 4 signal transmission coaxial-cable structural representation
Embodiment
As shown in Figure 1, the present invention includes the seal wire 1 of received signal, tuning match circuit plate 2, signal transmission coaxial-cable 3.The seal wire 1 of tube chamber coil also has coaxial cable 3 to be connected with detachable sub-miniature A connector respectively with tuning match circuit 2.Three parts just can be dismantled combination flexibly, the convenient use.Guaranteed that simultaneously seal wire can disposable use or be repeatedly used, and circuit and transmission line can be repeatedly used, and save material.
Guidewire body 1 of the present invention comprises the metal or alloy seal wire 11 of received signal, end at seal wire is a detachable sub-miniature A connector 12, conveniently be connected with tuning match circuit plate 2, can guarantee doctor's handled easily simultaneously, it is disposable or muptiple-use to guarantee that also seal wire uses.Specifically referring to Fig. 2.
Tuning match circuit 2 of the present invention comprises fixed capacity 21, S parameter peak position coarse adjustment electric capacity 22, the meticulous control capacittance 23 of S parameter peak position, S parameter peak value control capacittance 24, copper strips 25 and is after carrying out coil to the effect of the diode 26.S parameter peak position coarse adjustment electric capacity 22 of its protection of circuit and decoupling effect; the peak position of S parameter is adjusted near the suitable resonance frequency earlier with this electric capacity, and then with the meticulous control capacittance 23 of S parameter peak position further adjusting S parameter peak positions arrive suitable resonance frequency.The effect of S parameter peak value control capacittance 24 is when peak position is adjusted to suitable resonance frequency, uses S parameter peak value control capacittance 24 to be adjusted to suitable peak value to S parameter peak value.The effect of copper strips 25 is to serve as lead and inductance.The effect of diode 26 is to be used for circuit protection and decoupling.SMA adapter 27 is used for connecting seal wire 1 and coaxial transmission line 3.Specifically referring to Fig. 3.
Signal transmission coaxial-cable 3 of the present invention comprises the coaxial cable 32 that no magnetic sub-miniature A connector 31, no magnetic sub-miniature A connector 33 and 0-2m are long.No magnetic sub-miniature A connector 31 links together circuit board 2 and signal-transmitting cable 3, makes that simultaneously signal transmission coaxial-cable 3 and circuit board 2 are detachable.No magnetic sub-miniature A connector 33 is used for being connected with the scanner of nuclear magnetic resonance spectrometer, gives Computer Processing the signal that coil receives.
Claims (8)
1. a magnetic resonance tube chamber antenna assembly comprises the metal antenna seal wire, tuning match circuit plate and signal-transmitting cable.It is characterized in that: described antenna seal wire is maskless, and thickness can be selected.This wire guide is connected with tuning match circuit plate, and tuning match circuit plate is connected with signal-transmitting cable, and signal-transmitting cable is connected with magnetic resonance system, to extract the magnetic resonance signal that the tube chamber antenna receives.
2. described a kind of magnetic resonance tube chamber antenna assembly as claimed in claim 1, it is characterized in that: adopt the seal wire design of no external shield, make seal wire to select different thicknesses according to clinical requirement, for vascular diagnostic, our seal wire can be done very carefully, diameter is 0.0001-10mm, or it is thinner, human body is carried out minimally-invasive treatment, because wound is small, be safe so application tube chamber coil is treated, simultaneously owing to there is not external shield, vertical coverage of its received signal is big, and scope is: 0-2m.
3. described a kind of magnetic resonance tube chamber antenna assembly as claimed in claim 2 is characterized in that: the present invention adopts the antenna seal wire to do to such an extent that meet bio-compatibility, and human body is not had rejection and other bad reactions.
4. described a kind of magnetic resonance tube chamber antenna assembly as claimed in claim 3, it is characterized in that: the seal wire softness, good springiness makes things convenient for tube chamber intervention diagnosis and treatment.
5. described a kind of magnetic resonance tube chamber antenna assembly as claimed in claim 4 is characterized in that: the components and parts division of labor of tuning match circuit is clear and definite, is convenient to tuning coupling.
6. described a kind of magnetic resonance tube chamber antenna assembly as claimed in claim 5 is characterized in that: tuning match circuit adopts T or L or π type coupling, regulates simple and convenient.
7. described a kind of magnetic resonance tube chamber antenna assembly as claimed in claim 6, it is characterized in that: seal wire and circuit board are detachable, and seal wire can adopt disposable or repeated.
8. described a kind of magnetic resonance tube chamber antenna assembly as claimed in claim 7, it is characterized in that: operating frequency range is 0-3GHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110110713XA CN102280688A (en) | 2011-04-29 | 2011-04-29 | Magnetic resonance tube cavity antenna device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110110713XA CN102280688A (en) | 2011-04-29 | 2011-04-29 | Magnetic resonance tube cavity antenna device |
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| CN102280688A true CN102280688A (en) | 2011-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110110713XA Pending CN102280688A (en) | 2011-04-29 | 2011-04-29 | Magnetic resonance tube cavity antenna device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103941203A (en) * | 2013-01-22 | 2014-07-23 | 北京大学 | Flexible antenna device used for magnetic resonance imaging |
| CN107320103A (en) * | 2016-04-29 | 2017-11-07 | 北京大学 | Magnetic resonance antenna, the plasma two-in-one device for navigating and treating for tube chamber focus |
| CN110703168A (en) * | 2019-09-12 | 2020-01-17 | 哈尔滨医科大学 | Nude mouse subcutaneous tumor volume self-adaptive radio frequency surface coil and use method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010056232A1 (en) * | 2000-02-01 | 2001-12-27 | Lardo Albert C. | Magnetic resonance imaging transseptal needle antenna |
| US6549800B1 (en) * | 1996-04-25 | 2003-04-15 | Johns Hopkins Unversity School Of Medicine | Methods for in vivo magnetic resonance imaging |
| US20040024308A1 (en) * | 2002-08-02 | 2004-02-05 | Wickline Samuel A. | Method and apparatus for intracorporeal medical imaging using self-tuned coils |
| CN101031237A (en) * | 2004-07-27 | 2007-09-05 | 外科视象公司 | MRI systems having mri compatible universal delivery cannulas with cooperating mri antenna probes and related systems and methods |
| CN101039619A (en) * | 2004-08-09 | 2007-09-19 | 约翰斯·霍普金斯大学 | Implantable mri compatible stimulation leads and antennas and related systems and methods |
-
2011
- 2011-04-29 CN CN201110110713XA patent/CN102280688A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6549800B1 (en) * | 1996-04-25 | 2003-04-15 | Johns Hopkins Unversity School Of Medicine | Methods for in vivo magnetic resonance imaging |
| US20010056232A1 (en) * | 2000-02-01 | 2001-12-27 | Lardo Albert C. | Magnetic resonance imaging transseptal needle antenna |
| US20040024308A1 (en) * | 2002-08-02 | 2004-02-05 | Wickline Samuel A. | Method and apparatus for intracorporeal medical imaging using self-tuned coils |
| CN101031237A (en) * | 2004-07-27 | 2007-09-05 | 外科视象公司 | MRI systems having mri compatible universal delivery cannulas with cooperating mri antenna probes and related systems and methods |
| CN101039619A (en) * | 2004-08-09 | 2007-09-19 | 约翰斯·霍普金斯大学 | Implantable mri compatible stimulation leads and antennas and related systems and methods |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103941203A (en) * | 2013-01-22 | 2014-07-23 | 北京大学 | Flexible antenna device used for magnetic resonance imaging |
| CN107320103A (en) * | 2016-04-29 | 2017-11-07 | 北京大学 | Magnetic resonance antenna, the plasma two-in-one device for navigating and treating for tube chamber focus |
| CN110703168A (en) * | 2019-09-12 | 2020-01-17 | 哈尔滨医科大学 | Nude mouse subcutaneous tumor volume self-adaptive radio frequency surface coil and use method thereof |
| CN110703168B (en) * | 2019-09-12 | 2021-08-20 | 哈尔滨医科大学 | Nude mouse subcutaneous tumor volume self-adaptive radio frequency surface coil and use method thereof |
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Application publication date: 20111214 |