CN209490011U - Carotid artery coil device for magnetic resonance imaging system - Google Patents

Abstract

The utility model relates to a kind of carotid artery coil devices for magnetic resonance imaging system, including by crossbeam left side sub-coil interconnected and right side sub-coil, the left side sub-coil and right side sub-coil pass through cable connection to magnetic resonance imaging system respectively.It include cell rings in its electric structure sheaf, the cell rings include the ring circuit that the banded conductor being distributed on curved surface is constituted.The carotid artery coil of the utility model connects left side sub-coil and right side sub-coil by crossbeam, doctor is facilitated to operate.Its electric structure sheaf includes the ring circuit that the ribbon conductor being distributed on curved surface is constituted, and superior performance has good image quality.Flexible inner envelope increases the comfort level of patient, structurally reasonable compact.

Description

Carotid artery coil device for magnetic resonance imaging system

Technical field

The utility model relates to a kind of carotid artery coil devices more particularly to one kind for magnetic resonance imaging system to pass through Carotid artery coil of the MRI system to neck blood vessel imaging.

Background technique

It is generally known that magnetic resonance imaging system is the two dimension or 3-D image for generating sample according to Principle of Magnetic Resonance Imaging Equipment, it is in an increasingly wide range of applications in medical diagnostic field.Common magnetic resonance imaging system generally comprises: generating quiet The magnet of state uniform magnetic field B0, the range of the static state uniform magnet is sufficiently large, can cover the imaging position of the body of patient；It penetrates Display system, including the radio-frequency sending coil for exciting sample to resonate, and the resonance signal for receiving sample sending RF receiving coil；Gradient system, for generating gradient magnetic, in sample space convenient for imaging coding；And computer generated image System is processed into the visual pattern convenient for doctor's observation for handling the signal of RF receiving coil collection.

In nmr imaging technique, sample is collected using receiving coil and is excited the radiofrequency signal issued, is collected into Radiofrequency signal is rebuild after being amplified for sample image.The electrical structure of receiving coil mainly includes the line being made by conductive material Circle body, and the inductance and capacitor that are connected in coil case.In the operating condition, receiving coil is around the examined portion of patient Position, output impedance are matched with back-end data collection equipment, and have uniform electromagnetic field inside working frequency coil The resonance signal of distribution, extraction has good signal-to-noise ratio, to obtain clear distortionless sample image.

Receiving coil is in the operating condition, relatively fixed with the spatial position needs at the examined position of patient, is ensureing On the basis of coil performance, while guaranteeing certain comfort level again, neither increase additional pain to patient, also not to inspection The doctor of room increases labor intensity, so the design of loop construction is extremely important.

Utility model content

The purpose of the utility model is to provide a kind of superior performance carotid artery coils easy to use.

A kind of carotid artery coil device for magnetic resonance imaging system disclosed by the utility model, including it is left for neck The left side sub-coil of vascellum laterale image scanning, and the right side sub-coil for neck right side blood vessels scanning imagery；It further include connection The crossbeam of left side sub-coil and right side sub-coil.

The crossbeam includes the structure of adjustment length for changing the length of crossbeam.

The left side sub-coil and right side sub-coil pass through cable connection to the magnetic resonance imaging system respectively.

The left side sub-coil and right side sub-coil all include close to the inner envelope of neck and its corresponding outer respectively Side shell further includes the electric structure sheaf between the inner envelope and outside shell.

It include a cell rings, the cell rings packet in the electricity structure sheaf in one embodiment of the utility model Include the ring circuit that the banded conductor being distributed on curved surface is constituted.

It include more than one cell rings in the electricity structure sheaf in one embodiment of the utility model；The list Member ring includes the ring circuit that the banded conductor being distributed on curved surface is constituted；One above cell rings are distributed in institute It states in electric structure sheaf, and the area that adjacent cells ring is enclosed overlaps.

In one embodiment of the utility model, the inner envelope further comprises in inside flexible outer layer and inside Shell；The outside shell further comprises outside hypostracum and outside outer shell.

In one embodiment of the utility model, the thickness of the left inside side flexible outer layer or Right Inboard flexible outer layer It is 5 millimeters.

In one embodiment of the utility model, the crossbeam both ends are separately connected the left side sub-coil and right side point The part of coil is U-shaped, and the both ends of the U-shaped are rotatably connected at the left side sub-coil or right side sub-coil respectively.

The carotid artery coil for magnetic resonance imaging of the utility model, including pass through crossbeam left side separated time interconnected Circle and right side sub-coil, facilitate doctor to operate.Its electric structure sheaf includes the ring-type that the ribbon conductor being distributed on curved surface is constituted Circuit, superior performance have good image quality.Flexible inner envelope increases the comfort level of patient, structurally reasonable compact.

Detailed description of the invention

Fig. 1 is the position signal of the carotid artery coil working state of device for magnetic resonance imaging system of the utility model Figure.

Fig. 2 is the structural decomposition diagram of the carotid artery coil device for magnetic resonance imaging system of the utility model.

Fig. 3 is the electrical structure schematic diagram of the carotid artery coil of the utility model.

Fig. 4 is the schematic diagram of the cell rings in the electrical structure of the carotid artery coil of the utility model.

Specific embodiment

Specific embodiment of the present utility model is described in further details with reference to the accompanying drawing, it is explained below not limit The range of the utility model patent.

The utility model discloses a kind of carotid artery coil devices for magnetic resonance imaging system, can not only obtain excellent Blood-vessel image, and be easy to medical staff and place fix, do not increase additional pain to patient in checking process.

It is the carotid artery coil working state of device for MRI system of the utility model as shown in Figure 1 Position view.Carotid artery coil includes similar structure and symmetrical left side sub-coil or right side sub-coil, left side sub-coil Pass through cable 100 respectively with right side sub-coil and cable 200 is connected to magnetic resonance imaging system.Carotid artery coil under working condition The left and right sides be fitted on the corresponding position of neck and be scanned respectively.

It is the STRUCTURE DECOMPOSITION of the carotid artery coil device for MRI system of the utility model as shown in Figure 2 Schematic diagram.Attachment device crossbeam 300 including sub-coil and right side sub-coil on the left of carotid artery coil；Working condition lower beam 300 fix sub-coil and right side sub-coil on the left of carotid artery coil below neck.The right side separated time of carotid artery coil Circle specifically includes that Right Inboard flexible outer layer 201, Right Inboard hypostracum 203, electric structure sheaf 205, right outside hypostracum from inside to outside 207, right outside outer shell 209, above layers are successively bonded and are fixed together.The left side sub-coil of carotid artery coil is from inside to outside Structure specifically include that left inside side flexible outer layer 101, left inside side hypostracum 103, electric structure sheaf 105, left-external side hypostracum 107, left-external side outer shell 109；Above layers are successively bonded and are fixed together.

It is the electrical structure schematic diagram of the carotid artery coil of the utility model as shown in Figure 3.The left side of carotid artery coil point The electric structure sheaf 205 of coil or the electric structure sheaf 105 of right side sub-coil include 4 and are distributed on curved surface and are fixed together Cell rings, the area that adjacent cells ring is covered overlaps, and it is total can to inspire magnetic in cell rings in the operating condition Shake signal, and this magnetic resonance signal can be output to magnetic resonance imaging system by cable 100 or cable 200.

Include 4 unit loop circuits in the electric structure sheaf 205 of above-mentioned left side sub-coil, is respectively: cell rings 2051, unit Ring 2052, cell rings 2053 and cell rings 2054；It include 4 unit loop circuits in the electric structure sheaf 105 of above-mentioned right side sub-coil, It is respectively: cell rings 1051, cell rings 1052, cell rings 1053 and cell rings 1054.

It is the structural schematic diagram of the cell rings in the electrical structure of the carotid artery coil of the utility model as shown in Figure 4.It is single Member ring is distributed across the closed hoop circuit of the composition of the banded conductor on curved surface.

The both ends of crossbeam 300 are rotatably connected at the right outside outer shell 209 of sub-coil on the right side of carotid artery coil respectively With the left-external side outer shell 109 of left side sub-coil.It in one embodiment, is U-shaped, the U-shaped in the end at the both ends of crossbeam 300 There are the aixs cylinder being oppositely arranged in two ends of end, and two ends of the U-shaped end are engaged in left-external side outer shell 109 from outside Or on right outside outer shell 209；Two aixs cylinders are correspondingly embedded in positioned at left-external side outer shell 109 or right outside outer shell In the mounting hole being oppositely arranged on 209.The installation being oppositely arranged on left-external side outer shell 109 or right outside outer shell 209 The cooperation of the aixs cylinder in hole and 300 end of crossbeam allows the U-shaped end with respect to the left-external side outer shell 109 or right outside Outer shell 209 rotates.

Crossbeam 300 has the structure and function of adjustment length, when the length change of crossbeam 300 just changes carotid artery coil The whole area enclosed, enables the structure of carotid artery coil to adapt to neck of different sizes simultaneously.

The Right Inboard flexible outer layer 201 of right side sub-coil and the left inside side flexible outer layer 101 of left side sub-coil are in work shape The skin of neck is directly contacted under state, and there is the property of soft sense of touch and anti-skin allergy.Its thickness is about 5mm. The distance between electric structure sheaf and examined neck in the thickness limit of inside flexible outer layer carotid artery coil, this A distance being defined has the property for obtaining most excellent magnetic resonance image.

The Right Inboard hypostracum 203 of right side sub-coil and right outside hypostracum 207 installation, secure electric structure sheaf 205 and Its corresponding resonance circuit and signal draw circuit, ensure that electric structure sheaf 205 has changeless shape and each list The mutual positional relationship of member ring.Likewise, the left inside side hypostracum 103 and left-external side hypostracum 107 of left side sub-coil are pacified It fills, secure electric structure sheaf 105 and its corresponding resonance circuit and signal extraction circuit, it is solid to ensure that electric structure sheaf 105 has The mutual positional relationship of fixed constant shape and each unit ring.

The inner space of left-external side outer shell 109 and right outside outer shell 209 can place the advance signal amplification of coil Device and circuit board, and have rotation axis vacancy among the outer shell of outside, guarantee that the connection between crossbeam 300 and outside outer shell is Rotatable connection can be bonded neck by rotating different angles to adapt to different patient's neck sizes.

The carotid artery coil of the utility model connects left side sub-coil and right side sub-coil by crossbeam 300, very convenient It installs and changes the outfit coil, facilitate the alignment of coil working position, alleviate the labor intensity of doctor.

A cell rings can be only included in electric structure sheaf 205 and electric structure sheaf 105, or including more than one unit Ring.

The right outside hypostracum 207 and right outside outer shell 209 of right side sub-coil, which can be combined, to be integrally formed outside i.e. Side shell, and realize same function.Likewise, the left-external side hypostracum 107 and left-external side outer shell 109 of left side sub-coil It can be combined and be integrally formed i.e. outside shell, and realize same function.

The Right Inboard flexible outer layer 201 and Right Inboard hypostracum 203 of right side sub-coil, which can be combined, to be integrally formed, i.e., The inner envelope of soft surface, and realize same function.Likewise, the left inside side flexible outer layer 101 of left side sub-coil and a left side Inside hypostracum 103 can be combined and be integrally formed, i.e. the inner envelope of soft surface, and realize same function.

The fixed electric structure sheaf 105 of the inner envelope of above-mentioned soft surface enclosing opposite with outside shell, or opposite enclosing Fixed electricity structure sheaf 205.

Claims (10)

1. a kind of carotid artery coil device for magnetic resonance imaging system, which is characterized in that including for blood vessel on the left of neck The left side sub-coil of image scanning, and the right side sub-coil for neck right side blood vessels scanning imagery；It further include connection left side point The crossbeam (300) of coil and right side sub-coil.

2. carotid artery coil device as described in claim 1, which is characterized in that the crossbeam (300) includes adjustment length Structure for changing crossbeam (300) length.

3. carotid artery coil device as described in claim 1, which is characterized in that the left side sub-coil and right side sub-coil point Not Tong Guo cable connection to the magnetic resonance imaging system.

4. carotid artery coil device as described in claim 1, which is characterized in that the left side sub-coil and right side sub-coil point All do not include the inner envelope and its corresponding outside shell close to neck, further includes being located at the inner envelope and outside Electric structure sheaf between shell.

5. carotid artery coil device as claimed in claim 4, which is characterized in that include a unit in the electricity structure sheaf Ring, the cell rings include the ring circuit that the banded conductor being distributed on curved surface is constituted.

6. carotid artery coil device as claimed in claim 4, which is characterized in that include more than one in the electricity structure sheaf Cell rings；The cell rings include the ring circuit that the banded conductor being distributed on curved surface is constituted；More than one Cell rings are distributed in the electric structure sheaf, and the area that adjacent cells ring is enclosed overlaps.

7. carotid artery coil device as claimed in claim 6, which is characterized in that include 4 cell rings in the electricity structure sheaf.

8. carotid artery coil device as claimed in claim 7, which is characterized in that the inner envelope of the left side sub-coil is into one Step includes left inside side flexible outer layer (101) and left inside side hypostracum (103), and the inner envelope of the right side sub-coil further wraps Include Right Inboard flexible outer layer (201) and Right Inboard hypostracum (203)；The outside shell of the left side sub-coil further comprises a left side Outside hypostracum (107) and left-external side outer shell (109), the outer shell of the right side sub-coil further comprise right outside inner casing Layer (207) and right outside outer shell (209).

9. carotid artery coil device as claimed in claim 7, which is characterized in that the left inside side of the left side sub-coil is flexible outer The thickness of the Right Inboard flexible outer layer (201) of layer (101) or right side sub-coil is 5 millimeters.

10. carotid artery coil device as described in claim 1, which is characterized in that crossbeam (300) both ends are separately connected institute The part for stating left side sub-coil and right side sub-coil is U-shaped, and the both ends of the U-shaped are rotatably connected at the left side separated time respectively Circle or right side sub-coil.