CN211318721U - Body coil supporting device and body coil assembly - Google Patents

Abstract

An embodiment of the utility model provides a somatic part coil strutting arrangement and somatic part coil pack. The body coil supporting device comprises an imaging part carrier, a supporting body and a connecting piece. The support body is provided with a locking groove and a displacement groove communicated with the locking groove at each height of a plurality of heights. One end of the connecting piece is telescopically connected with the imaging part carrier, and the other end of the connecting piece is arranged to be matched with the locking groove or the displacement groove at any height, wherein the imaging part carrier can move relative to the support body to drive the other end of the connecting piece to move between the locking groove and the displacement groove at the current height; the imaging part carrier can move relative to the support body to drive the other end of the connecting piece to move from the current displacement groove to another adjacent displacement groove; and a blocking wall is arranged between the adjacent locking grooves to prevent the other end of the connecting piece from moving between the adjacent locking grooves.

Description

Body coil supporting device and body coil assembly

Technical Field

Embodiments of the present invention relate to medical imaging technology, and more particularly, to a body coil support and body coil assembly that can be used for Magnetic Resonance Imaging (MRI).

Background

Magnetic Resonance Imaging (MRI) techniques utilize magnets with strong magnetic fields to generate static magnetic fields. When a part of a human body to be imaged is positioned in the static magnetic field B0, the nuclear spins associated with the hydrogen nuclei in the human tissue produce polarization, so that the tissue of the part to be imaged macroscopically produces a longitudinal magnetization vector. When a radio-frequency field B1 is applied, which intersects the direction of the static magnetic field B0, the direction of rotation of the protons changes, so that the tissue of the region to be imaged macroscopically generates a transverse magnetization vector. After the radio frequency field B1 is removed, the transverse magnetization vector decays in a spiral shape until it returns to zero, a free induction decay signal is generated during the decay process, the free induction decay signal can be acquired as a magnetic resonance signal, and a tissue image of the region to be imaged can be reconstructed based on the acquired signal.

The radio frequency pulses are typically transmitted by a radio frequency coil and the magnetic resonance signals generated by the body are received, and it is generally believed that the closer the radio frequency coil is to the imaging site, the better the quality of the image. For this purpose, different local coil arrangements are designed for the imaging region of the human body, for example body coil arrangements such as the head, wrist, ankle, etc., which may have a coil arrangement for receiving signals and a carrier carrying the coil arrangement, which is also usually able to accommodate or carry the region to be imaged.

In magnetic resonance imaging, a patient needs to be positioned to a specific position and angle to be imaged to adapt to a better imaging effect, and when the body coil device is used, the positioning can be completed through various auxiliary modes such as horizontal movement, height adjustment, rotation angle and the like. For example, the ankle coil arrangement may be used to support a patient's foot to enable magnetic resonance imaging of the region, whereas adjustment of the position of the ankle coil typically involves adjustment of height, for example to assist the patient in raising or lowering the foot.

The position adjustment, particularly the height adjustment, of the body coil in the prior art needs to be performed by means of two-handed operation, for example, in an ankle coil device in the prior art, a handle needs to be operated by one hand to release the carrier in a state capable of being adjusted until the carrier is raised or lowered by the other hand, and during the adjustment, the foot of the patient may need to enter or exit the carrier many times to finally carry the foot at a proper height/angle, which causes burden to the patient and also prolongs the imaging preparation time.

Accordingly, there is a need to provide a new body coil support apparatus that simplifies the operation and saves imaging preparation time.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides a body coil strutting arrangement, including formation of image position carrier, supporter and connecting piece. The support body is provided with a locking groove and a displacement groove communicated with the locking groove at each height of a plurality of heights. One end of the connecting piece is telescopically connected with the imaging part carrier, and the other end of the connecting piece is arranged to be matched with the locking groove or the displacement groove at any height, wherein the imaging part carrier can move relative to the support body to drive the other end of the connecting piece to move between the locking groove and the displacement groove at the current height; the imaging part carrier can move relative to the support body to drive the other end of the connecting piece to move from the current displacement groove to another adjacent displacement groove; and a blocking wall is arranged between the adjacent locking grooves to prevent the other end of the connecting piece from moving between the adjacent locking grooves.

Optionally, the depth of the locking groove at each height is greater than the depth of the displacement groove.

Optionally, a first transition wall is provided between the locking groove and the displacement groove at each height, the first transition wall being substantially a segment of a polyhedron or a polyhedron comprising a plurality of inclined faces connected in series.

Optionally, a second transition wall is arranged between two adjacent displacement slots, the second transition wall is substantially a cambered surface body or a polyhedron, and the polyhedron comprises a plurality of inclined surfaces which are connected in sequence.

Optionally, the barrier wall has a length in the depth direction that is greater than a length of the second transition wall in the depth direction.

Optionally, the connecting piece is including setting up removal end and the locking end at its other end, it is used for the cooperation to remove the end the displacement groove, the locking end is used for the cooperation the locking groove, it is certainly to remove the end the locking end to the degree of depth direction extension in locking groove forms.

Optionally, the locking end of the connector has a cylindrical surface.

Optionally, the moving end of the connecting member has a spherical surface.

Optionally, one end of the connector is connected to the imaging site carrier by a spring.

Optionally, an accommodating groove is formed along one side of the imaging part carrier opposite to the locking groove and the displacement groove, and one end of the connecting piece is arranged in the accommodating groove.

Optionally, the supporter includes support base and certainly support base extends the stopper that forms along the direction of height, the formation of image position carrier rotationally connect support base on with the position department that the stopper is relative, every high department locking groove and displacement groove all set up on the stopper.

Optionally, a limiting hole is formed in the imaging part carrier, and a rotating shaft matched with the limiting hole is arranged on the supporting base.

Optionally, the support body includes a housing disposed outside the stopper.

Optionally, the support body further comprises a mounting base for supporting the support base, the support base being mounted on and movable relative to the mounting base.

Optionally, the mounting base is provided with a guide device for guiding the support base to move at least in the horizontal direction.

Optionally, the guiding device is provided with at least one limiting component matched with the supporting base.

Optionally, the support body is provided with a pair of locking grooves and a pair of displacement grooves at any height position, the pair of locking grooves and the pair of displacement grooves are respectively located at two sides of the imaging part carrier, and the connecting piece comprises two connecting pieces respectively matched with the pair of locking grooves or the pair of displacement grooves.

An embodiment of the utility model provides a body coil strutting arrangement, including supporter and formation of image position carrier. The support body has a locked position and an unlocked position at each of the plurality of heights. One end of a connecting member is connected to the imaging site carrier, and the other end of the connecting member is used for being engaged with the supporting body at the locking position at any height to prevent the height of the imaging site carrier relative to the supporting body from being changed; the other end of the connecting piece is also used for moving along with the imaging part carrier along a first direction relative to the supporting body so as to move from a locking position to an unlocking position at the current height, so that the imaging part carrier is allowed to drive the other end of the connecting piece to be jointed with the supporting body after the other end of the connecting piece moves from the unlocking position at the current height to the unlocking position at the other height; the other end of the connecting piece is also used for moving along with the imaging part carrier along the reverse direction of the first direction relative to the supporting body so as to be engaged with the supporting body after the current height is moved from the unlocking position to the locking position, and therefore the height of the imaging part carrier relative to the supporting body is prevented from being changed.

An embodiment of the present invention further provides a body coil assembly, including the body coil supporting device of any of the above embodiments and a radio frequency coil installed on the body coil supporting device.

Optionally, the radio frequency coil is an ankle coil.

It should be understood that the brief description above is provided to introduce in simplified form some concepts that are further described in the detailed description. It is not meant to identify key or essential features of the claimed subject matter, the scope of which is defined uniquely by the claims that follow the detailed description. Furthermore, the claimed subject matter is not limited to implementations that solve any disadvantages noted above or in any section of this disclosure.

Drawings

The invention will be better understood by reading the following description of non-limiting embodiments, with reference to the attached drawings, in which:

fig. 1 is a schematic structural view of a body coil support device according to a first embodiment of the present invention;

fig. 2 is an exploded schematic view of a body coil support device according to a first embodiment of the present invention;

FIG. 3 is a schematic illustration of the body coil support of FIG. 1 with the imaging site carrier elevated;

FIG. 4 is a schematic view of the imaging site carrier of the body coil support of FIG. 1 at different heights or angles relative to the support;

FIG. 5 is a cross-sectional view of the body coil support of FIG. 3 taken along line A-A;

FIG. 6 is a cross-sectional view of the body coil support of FIG. 5 taken along line B-B showing the coupling structure of the support and the imaging site carrier of FIG. 2;

FIG. 7 illustrates the stop block and connecting body of FIG. 6;

FIG. 8 shows the locking and displacement slots of FIG. 7;

FIG. 9 shows the moving and locking ends of the connecting body of FIG. 7;

fig. 10 is an exploded view of a body coil support device according to a second embodiment of the present invention;

fig. 11 is a schematic structural view of a body coil assembly according to a third embodiment of the present invention;

FIG. 12 shows an exploded view of the body coil assembly of FIG. 11; and the number of the first and second groups,

figure 13 is a block diagram of a magnetic resonance imaging system according to an embodiment.

Detailed Description

In the following description of the embodiments of the present invention, it is noted that in the detailed description of the embodiments, all the features of the actual embodiments may not be described in detail in order to make the description concise and concise. It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions are made to achieve the developers' specific goals, such as compliance with system-related and business-related constraints, which may vary from one implementation to another. Moreover, it should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions must be made to achieve the developers' specific goals, such as compliance with system-related and business-related constraints, which may vary from one implementation to another.

Unless otherwise defined, technical or scientific terms used in the claims and the specification should have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The use of "first," "second," and similar terms in the description and claims of the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The terms "a" or "an," and the like, do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprise" or "comprises", and the like, means that the element or item listed before "comprises" or "comprising" covers the element or item listed after "comprising" or "comprises" and its equivalent, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, nor are they restricted to direct or indirect connections.

The first embodiment:

referring to fig. 1 to 3, a first embodiment of the present invention provides a body coil supporting device 10, which can be applied in a magnetic resonance imaging system to carry a radio frequency coil, and the structure of the supporting device and the radio frequency coil thereon is designed such that when imaging, the radio frequency coil can at least partially surround or be close to a part of a human body to be imaged, so as to receive a magnetic resonance signal of the part. The body coil support apparatus 10 includes an imaging site carrier 12, a support 14, and a connector 16. The imaging region carrier 12 may be used to carry a body region to be imaged, such as the ankle, during magnetic resonance imaging. The support 14 is for supporting the imaging site carrier 12, and the connecting member 16 is for connecting the imaging site carrier 12 and the support 14.

The height of the imaging region carrier 12 relative to the support 14 can be adjusted so that the body part carried on the imaging region carrier 12 can be adjusted to a suitable height or angle that allows the region to be examined or viewed to be located in a more uniform magnetic field of the magnetic resonance imaging region to enable a detection image of better image quality to be obtained. The "height" may particularly be a distance from a reference plane, which may be the ground, the surface of a scanning bed in a magnetic resonance imaging system, a certain cross-section of the support 14. The "angle" mentioned above may in particular be the angle formed by the imaging spot carrier and the reference plane. For example, in figure 3, the imaging site carrier 12 is locked at a height or angle from the surface of the support 14 after being raised to a distance from the surface of the support 14 or to an angle from the surface of the support 14 for performing a magnetic resonance imaging scan.

Further, as shown in fig. 4, the imaging site carrier 12 can be positioned at different positions relative to the support 14, such as at one of a plurality of such heights or angles. Specifically, the support body 14 is provided with a locking groove and a displacement groove communicating with the locking groove at each of a plurality of heights, for example, the locking groove and the corresponding displacement groove may communicate in a horizontal direction. The "horizontal direction" may be generally perpendicular to the direction in which the "height" extends, and more specifically, may be the direction in which the imaging region carrier 12 moves back and forth, such as the "Z" direction of magnetic resonance imaging or the lengthwise extension of the scanning bed.

Referring to fig. 5 to 8, the support body 14 has a portion extending in a height direction (e.g., the direction of an arrow a2 in fig. 7 or a reverse direction thereof) provided with locking grooves 141, 143, 145 and 147 and displacement grooves 142, 144, 146 and 148. Wherein the locking grooves 141, 143, 145 and 147 are sequentially provided at the first height to the fourth height from lower to higher, respectively. The locking groove 141 and the displacement groove 142 are spaced apart at a first height (e.g., in a horizontal direction, i.e., the directions indicated by arrows a1 and A3 in fig. 7), and communicate with each other. Similarly: the locking groove 143 and the displacement groove 144 are spaced apart at the second height and communicate with each other; the locking groove 145 and the displacement groove 146 are spaced apart at the third height and communicate with each other; the locking groove 147 and the displacement groove 148 are spaced apart at the fourth height and communicate with each other. The present invention shows only four adjustment heights or angles of the imaging site carrier 12, and those skilled in the art should understand that this number is not used to limit the protection scope of the present invention, which can be increased or decreased according to actual clinical needs or other actual conditions.

Further, between adjacent locking grooves are provided blocking walls, such as the blocking walls 31, 33 and 35 in fig. 7, for example, each of which includes a lower wall of the locking groove at an upper side thereof and an upper wall of the locking groove at a lower side thereof.

The translation/adjustment of the imaging site carrier 12 at different heights or angles may be accomplished by one-handed operation of any of its sites, as will be described in detail below.

The connecting member 16 has one end telescopically connected to the imaging site carrier 12 and the other end arranged to cooperate with a locking or displacement groove at any of the above-mentioned heights, for example the connecting member 16 may extend into the locking or displacement groove in such a way that the imaging site carrier 12 engages with the support 14 at this height. In this embodiment, the connecting member 16 can be elastically connected to the imaging part carrier 12 through, for example, the spring 17, specifically, the accommodating groove 121 is opened along one side of the imaging part carrier 12 opposite to the locking groove and the displacement groove, one end of the connecting member 16 is disposed in the accommodating groove 121 and connected to the bottom wall or the side wall of the accommodating groove 121 through the spring 17, which is beneficial to saving space and limiting the connecting member 16 properly, thereby avoiding excessive displacement of the connecting member 16 due to elastic force.

The imaging site carrier 12 can be moved horizontally relative to the support body 14 to bring the other end of the connecting piece 16 to move between the locking groove and the displacement groove at the current height. For example, when the other end of the connector 16 is currently extending into the locking slot 147, the operator may apply a pushing or pulling force to the imaging site carrier 12 with one hand to move the other end of the connector in the direction indicated by arrow A1 until it extends into the displacement slot 148.

The imaging site carrier 12 can also be moved vertically relative to the support body 14 to bring the other end of the connecting piece 16 from the current displacement slot to the next adjacent displacement slot. For example, when the other end of the link 16 extends into the current displacement slot 148, the operator may apply pressure to the imaging site carrier 12 with one hand to move the other end of the link 16 in the direction indicated by arrow a2 until it extends into the displacement slot 146 below it.

When it is desired to secure the imaging site carrier 12 at the current height, i.e., the height at which the displacement slot 146 and locking slot 145 are located, the operator may apply a pulling or pushing force to the imaging site carrier 12 with one hand to bring the other end of the connector 16 into locking slot 145 along arrow a 3.

When the other end of the connecting member 16 is inserted into any one of the locking grooves, the blocking wall adjacent thereto can prevent the imaging section carrier 12 from being vertically moved. For example, when the imaging site carrier 12 is locked at the position of the locking groove 145, the blocking wall 153 between the locking groove 145 and the locking groove 143 therebelow can interfere with the connection member 16 to prevent the imaging site carrier 12 from being vertically moved due to gravity or an external force.

In one embodiment, the depth of the locking groove at each height is greater than the depth of the displacement groove. In this way, the locking groove is deep enough so that the connecting piece 16 protrudes deeper into the support body 14 at this point to avoid up and down movement of the imaging site carrier 12, and the displacement groove is shallow enough to facilitate smooth movement of the connecting piece 16 during height adjustment. The depth direction may be the direction indicated by arrow a4 in fig. 7.

Further, be equipped with first transition wall 171 between the locking groove of every high department and the displacement groove, it is the cambered surface body or polyhedron generally, and this polyhedron can include a plurality of inclined planes that connect gradually, and such design both makes when the mistake touches imaging region carrier 12, and connecting piece 16 can't move between locking groove and displacement groove easily and the mistake adjusts the height, still makes the smoothness nature of guaranteeing the removal when really needing to move between the two.

Optionally, a second transition wall 172 is disposed between two adjacent displacement slots, and the second transition wall 172 is substantially cambered or polyhedral to ensure the smoothness of movement of the connecting member 16 between the adjacent displacement slots, and to facilitate switching between adjacent heights, and to facilitate smooth switching from one height to another height. For example, displacement slot 142 and displacement slot 144 have a second transition wall 172 therebetween, which also includes a plurality of successively connected inclined surfaces. In other embodiments, there may be no barrier between the displacement slots, for example by providing a flag at the respective height to indicate to the operator from which height to move the connector 16 from the displacement slot to the locking slot.

The length of the blocking walls 31, 33, 35 in the depth direction is greater than the length of the second transition wall 172 in the depth direction, so that the blocking walls 31, 33, 35 are long enough in the depth direction to be able to abut against the connecting piece to prevent the imaging section carrier 12 from moving up and down, and the second transition wall 172 is short enough in the depth direction to prevent resistance to movement of the connecting piece 16 during height adjustment.

Further, the first line of the centers of the locking grooves 141, 143, 145 and 147 forms an angle with the height direction so that the connecting member 16 can be adapted to the position of the locking groove of the current height in the horizontal direction at the position moved to the different height. Thus, the second line of centers of the displacement grooves 142, 144, 146, and 148 is substantially parallel to the first line and also substantially parallel to the direction of the line of the plurality of first transition walls.

Fig. 9 shows the structure of the connecting member 16 according to an embodiment of the present invention. Wherein the connection member 16 includes a moving end 161 and a locking end 162 provided at the other end thereof (i.e., the other end opposite to the one end connected to the imaging site carrier 12), wherein the moving end 161 is for engaging the displacement groove, the locking end 162 is for engaging the locking groove (or the corresponding blocking wall), and the moving end 161 is formed by extending from the locking end 162 toward the depth direction of the locking groove. More specifically, as an embodiment, the connecting member 16 includes a body, one end of the body is connected to the imaging site carrier 12, the other end of the body extends in the depth direction of the locking groove or the displacement groove to form a locking end 162, and the self-locking end 162 extends in the depth direction of the locking groove or the displacement groove to form a moving end 161. Remove end 161 and can remove to stretching into the locking groove or vice versa from the locking groove to stretching into the displacement groove from the displacement groove, stretch into the locking groove when removing end 161, locking end 162 also stretches into the locking groove and contradicts in order to avoid connecting piece 16 to reciprocate with the upper wall or the lower wall of locking groove.

The locking end 162 of the connector may have a cylindrical surface, for example it may comprise a cylindrical portion of various geometries such as a cylinder, square, prism, etc., such that the locking end 162 more firmly abuts the inner wall of the blocking wall (or locking groove) and prevents the connector 16 from sliding out of the locking groove.

Correspondingly, the moving end 161 of the coupling member has a spherical surface for facilitating movement between the locking groove and the corresponding displacement groove or between two adjacent displacement grooves under the elastic force.

Referring to fig. 2 and 6, which show the connection structure of the support body 14 and the imaging site carrier 12, optionally, the support body 14 includes a support base 150 and a stopper 140 formed extending from the support base 150 in the height direction, the imaging site carrier 12 is rotatably connected to the support base 150 at a position opposite to the stopper 140, and the locking groove and the displacement groove at each height are provided on the stopper 140. By rotationally connecting the imaging site carrier 12 to the support base 150, an angle is always formed between the imaging site carrier 12 and the support base 14 when the height of the imaging site carrier 12 is adjusted, so that structural stability is ensured, for example, the imaging site carrier is prevented from shaking during adjustment, and an operator can exert force conveniently.

Further, a limiting hole 123 is formed on the imaging part carrier 12, and a rotating shaft 153 engaged with the limiting hole 123 is formed on the supporting base 150, for example, the rotating shaft 153 may pass through the limiting hole 153 to rotatably connect the imaging part carrier 12 to the supporting base 150. The aperture of the limiting hole 123 is set to allow the imaging part carrier 12 to have a certain movement range in the horizontal direction so as to be able to drive the connecting piece 16 to move between the locking groove and the displacement groove at any height.

Further, the support body 14 is provided with a pair of locking grooves and a pair of displacement grooves at either height, which are respectively located at both sides of the imaging part carrier 12, and the connecting members 16 include two connecting members respectively engaged with the pair of locking grooves or the pair of displacement grooves. For example, the number of the stoppers 140 may be two, and the stoppers 140 are respectively oppositely distributed on both sides of the imaging part carrier 12, the two stoppers 140 may be formed in a symmetrical structure with each other, and the two sides of the imaging part carrier 12 may also be symmetrically connected with two connecting members 160, and the two connecting members 160 cooperate with the corresponding locking grooves or displacement grooves in the above-described manner to couple the imaging part carrier 12 to the supporting body 14.

Referring to fig. 1 to 6, the support body 14 further includes a housing 149 for covering the locking grooves and the displacement grooves, and the housing 149 is further mounted on the stopper 140.

Fig. 10 shows a schematic structural diagram of a body coil supporting device according to a second embodiment of the present invention, which is similar to the first embodiment, except that the body coil supporting device according to the second embodiment further includes a mounting base 21, the mounting base 21 is used for carrying the supporting base 150, and the supporting base 150 is mounted on the mounting base 21 and can slide relative to the mounting base 21. For example, as an embodiment, a guide means 211, such as a guide protrusion, a guide rail, a guide block, a guide groove, etc., may be provided on the mounting base 21, the guide means 211 being used to guide the support base 150 to move at least in a horizontal direction, which may specifically include a left-right direction, i.e., a depth direction of the locking groove and the displacement groove or a width extension direction of the scanning bed; the horizontal direction may also include the front-to-back direction, i.e., the direction in which the length of the scanning bed extends. When the body coil assembly is required to be used for auxiliary imaging, the body coil supporting device 20 and the coil assembly thereon can be arranged on the scanning bed through the mounting base 21, and besides the height adjustment, the horizontal position of the imaging part carrier, the imaging part thereon and the coil assembly can be adjusted by operating the imaging part carrier 12 to enable the supporting base 150 to horizontally move along the guide 211 relative to the mounting base 21.

The guiding device 211 is provided with at least one limiting component 212 cooperating with the supporting base 150, the limiting component 212 may include a plurality of protrusions extending along the guiding device 211, and the supporting base 150 may be correspondingly provided with a limiting groove (not shown in the figure), so that when it slides along the guiding device 211 to the limiting groove and one protrusion are opposite to each other, the limiting groove and one protrusion cooperate with each other to remind an operator of the current horizontal position of the imaging part carrier 12.

In accordance with the above disclosed embodiments, the present invention may also provide a body coil support device comprising a support body 14 and an imaging site carrier 12. The support body 12 has a locked position and an unlocked position at each of the plurality of heights, for example, the locked position may be a position at which the locking groove is located, the unlocked position may be a position at which the moving groove is located, the locked position may have other components capable of locking the imaging site carrier 12 to the support body 14, and the unlocked position may have other components capable of moving the imaging site carrier 12 in the height direction relative to the support body 14.

One end of the attachment member 16 is attached to the imaging site carrier 12 and the other end of the attachment member 16 is adapted to engage the support 14 at a locked position at any height to prevent the height of the imaging site carrier 12 relative to the support 14 from being changed. The other end of the link 16 is also adapted to move with the imaging site carrier 12 in a first direction relative to the support 14 to move from a locked position to an unlocked position at the current height to allow the imaging site carrier 12 to engage the support 14 with the other end of the link 16 after moving from the unlocked position at the current height to the unlocked position at the other height. The other end of the link 16 is also used to move with the imaging site carrier 12 in the reverse direction of the first direction relative to the support 14 to engage with the support 14 after the current height is moved from the unlocked position to the locked position to prevent the height of the imaging site carrier 12 relative to the support 14 from being changed. The first direction may be, for example, the direction indicated by arrow a1 in fig. 7.

Fig. 11 is a schematic structural view of a body coil assembly according to a fourth embodiment of the present invention, and fig. 12 is an exploded structural view of the body coil assembly of fig. 11. As shown in fig. 11 and 12, the body coil assembly includes the body coil support of any of the above embodiments, and further includes a radio frequency coil 40 disposed on the body coil support. The radio frequency coil 40 is removably mounted on the body coil support.

Although a body coil support 10 is shown, it will be understood by those skilled in the art that the devices described in other embodiments, such as the body coil support 20, may also be used in combination with the radio frequency coil 40 to form a body coil assembly. Although a saddle-shaped RF coil 40 is shown for accommodating the shape of the ankle of a human body, it should be understood that any other shape of RF coil 40 that accommodates other imaging portions of a human body is within the scope of the present invention. And an imaging region designed to fit the radio frequency coil 40. Although one shape of the imaging site carrier 12 is shown for accommodating the ankle of a human body and the saddle-shaped radio frequency coil 40 described above, it should be understood that any imaging site carrier 12 that accommodates other shapes of other imaging sites of a human body and their radio frequency coils is within the scope of the present invention. Therefore, the body coil assembly and the body coil supporting device thereof obtained by the embodiments of the present invention are all within the protection scope of the present invention, so as to adapt to the position adjustment of any imaging part.

The body coil assembly and body coil support described above may be used in a Magnetic Resonance Imaging (MRI) system as shown in fig. 13 to assist in imaging of an imaging site carried thereon, the MRI system of fig. 13 being described as an example only, and in other embodiments, the MRI system may have a variety of variations.

As shown in fig. 13, the MRI system includes: scanner 100, controller unit 200, data processing unit 300, and scanning bed 400. A mounting assembly for mounting the body coil assembly of embodiments of the present invention may be provided on the scanning bed 400, and the mounting assembly is configured to enable easy removal of the body coil assembly from the scanning bed 400.

The scanning bed 400 is used for carrying the imaging subject 160, and when it is required to perform magnetic resonance imaging on a specific imaging region (for example, ankle region) of the imaging subject 160, the body coil assembly is mounted on the scanning bed 400, and the specific imaging region is carried thereon. The horizontal position or height of the imaging site carrier 12 in the body coil assembly relative to the couch 400 may be further adjusted to aid in positioning the imaging site according to the particular position to be imaged.

The scanner 100 includes a main magnet 110, an RF transmit coil 120, a radio frequency generator 130, a gradient coil system 170, and a gradient coil driver 180.

The main magnet 110 typically comprises, for example, an annular superconducting magnet mounted within an annular vacuum vessel. The annular superconducting magnet defines a cylindrical space surrounding an imaging object. And generates a constant static magnetic field, such as static magnetic field B0, in the Z direction of the cylindrical space. The MRI system transmits a static magnetic pulse signal to the imaging subject 160 placed in the imaging space using the formed static magnetic field B0, so that the precession of protons within the body of the imaging subject 160 is ordered, producing a longitudinal magnetization vector.

The controller unit 200 is used to control the movement of the couch 400 carrying the imaging subject 160 into the imaging volume.

The controller unit 200 is configured to control the radio frequency generator 130 to generate radio frequency pulses, which may comprise radio frequency excitation pulses, which are amplified by, for example, a radio frequency power amplifier (not shown) and applied to the RF transmit coil 120, such that the RF transmit coil 120 transmits an RF magnetic field B1 orthogonal to the static magnetic field B0 to the imaging subject 160 to excite nuclei within the body of the imaging subject 160, and the longitudinal magnetization vector is converted into a transverse magnetization vector.

When the rf excitation pulse is terminated, a free induction decay signal, i.e., a magnetic resonance signal that can be acquired, is generated during the process of gradually returning the transverse magnetization vector of the imaging subject 160 to zero.

The controller unit 200 is adapted to control the gradient coil driver 180 to provide suitable power signals to the gradient coil system 170 for causing the gradient coil system 170 to generate gradient magnetic fields in the imaging space for providing three-dimensional position information for the magnetic resonance signals.

The magnetic resonance signal may be received by the radio frequency coil 40 on the body coil assembly of embodiments of the present invention.

The scanner 100 may further comprise a data acquisition unit 190, the data acquisition unit 190 being adapted to acquire magnetic resonance signals received by the radio frequency coil 40,

the data processing unit 300 may process the acquired magnetic resonance signals to obtain a desired image or image data.

The MRI system further includes an operation console 500 connected to the controller unit 200, and the controller unit 200 is configured to receive and process an operation signal input to the operation console 500, and control the operation states of the above-described components, such as the couch 400 and the scanner 100, based on the operation signal. The controller unit 200 also controls the data processing unit 300 based on the operation signal received from the operation console 500 so as to obtain a desired image.

The MRI system may further include a display unit 600, which may be connected to the operation console 500 to display an operation interface, and may also be connected to the data processing unit 300 to display images.

The embodiment of the utility model provides a somatic part coil pack and somatic part coil strutting arrangement pass through the connecting piece and connect formation of image position carrier and supporter, and make the connecting piece be in locking state and unblock state switching at the co-altitude of supporter, and switch over the height when unblock state, even when human formation of image position bears on somatic part coil strutting arrangement, also can only realize position control through one-hand operation formation of image position carrier, need not to make patient's formation of image position business turn over somatic part coil strutting arrangement repeatedly and cause patient's burden, also save the preparation time of magnetic resonance scanning when simplifying the operation.

As used herein, an element or step recited in the singular and proceeded with the word "a" or "an" should be understood as not excluding plural said elements or steps, unless such exclusion is explicitly recited. Furthermore, references to "one embodiment" of the present invention are not intended to be interpreted as excluding the existence of additional embodiments that also incorporate the recited features. Moreover, unless explicitly stated to the contrary, embodiments "comprising," "including," "having" or "having" an element or a plurality of elements having a particular property may include additional such elements not having that property. The terms "including" and "in which" are used as plain language equivalents of the respective terms "comprising" and "characterized by". Furthermore, in the appended claims, the terms "first," "second," and "third," etc. are used merely as labels, and are not intended to impose numerical requirements or a particular positional order on their objects.

This written description uses examples to disclose the invention, and also to enable any person skilled in the relevant art to practice the invention, including making and using any devices or systems and performing any incorporated methods. The scope of the invention is defined by the claims and may include other examples known to those skilled in the art. Such other examples are intended to be within the scope of the claims if they have structural elements that do not differ from the literal language of the claims, or if they include equivalent structural elements with insubstantial differences from the literal languages of the claims.

Claims (20)

1. A body coil support device, comprising:

an imaging site carrier;

a support body provided with a locking groove and a displacement groove communicated with the locking groove at each of a plurality of heights;

connecting piece, its one end telescopically connects the formation of image position carrier, the other end be set up to cooperate with arbitrary locking groove or displacement groove of height department, wherein the formation of image position carrier can for the supporter is removed in order to drive the other end of connecting piece moves between the locking groove of current height department and displacement groove, the formation of image position carrier can for the supporter is removed in order to drive the other end of connecting piece moves to adjacent another displacement groove from current displacement groove, and is adjacent be equipped with between the locking groove and block the wall in order to prevent the other end of connecting piece is in move between the adjacent locking groove.

2. The body coil support apparatus of claim 1, wherein a depth of the locking groove at each height is greater than a depth of the displacement groove.

3. The body coil support apparatus of claim 1, wherein a first transition wall is provided between the locking groove and the displacement groove at each height, the first transition wall being substantially a cambered body or a polyhedron including a plurality of inclined faces connected in series.

4. The body coil support apparatus of claim 1, wherein a second transition wall is provided between two adjacent displacement slots, the second transition wall being substantially a cambered or polyhedral shape, the polyhedral shape including a plurality of inclined surfaces connected in series.

5. The body coil support apparatus of claim 4, wherein the barrier wall has a length in the depth direction that is greater than a length in the depth direction of the second transition wall.

6. The body coil supporting device according to claim 1, wherein the connecting member includes a moving end and a locking end provided at the other end thereof, the moving end for engaging the displacement groove, the locking end for engaging the locking groove, and the moving end formed to extend from the locking end toward a depth direction of the locking groove.

7. The body coil support apparatus of claim 6 wherein the locking end of the connector has a cylindrical surface.

8. The body coil support apparatus of claim 6 wherein the moving end of the connector has a spherical surface.

9. The body coil support apparatus of claim 1 wherein one end of the connector is connected to the imaging site carrier by a spring.

10. The body coil support apparatus of claim 1, wherein a receiving groove is formed along a side of the imaging section carrier opposite to the locking groove and the displacement groove, and one end of the connecting member is disposed in the receiving groove.

11. The body coil supporting device according to claim 1, wherein the supporting body includes a supporting base and a stopper formed to extend in a height direction from the supporting base, the imaging section carrier is rotatably attached to the supporting base at a position opposite to the stopper, and the locking groove and the displacement groove at each height are provided on the stopper.

12. The body coil support apparatus of claim 11, wherein the imaging portion carrier is provided with a position-limiting hole, and the support base is provided with a rotating shaft engaged with the position-limiting hole.

13. The body coil support apparatus of claim 11, wherein the support body comprises a housing disposed outside the stop.

14. The body coil support apparatus of claim 11, wherein the support body further comprises a mounting base for supporting the support base, the support base being mounted on and movable relative to the mounting base.

15. A body coil support apparatus as claimed in claim 14 wherein the mounting base is provided with guide means for guiding the support base to move at least in a horizontal direction.

16. The body coil support apparatus of claim 15 wherein said guide means is provided with at least one stop assembly engaging said support base.

17. A body coil support apparatus as claimed in claim 1, wherein said support body is provided at either of said heights with a pair of locking slots and a pair of displacement slots respectively located on either side of said imaging site carrier, said connectors comprising two connectors for engaging said pair of locking slots or said pair of displacement slots respectively.

18. A body coil support device, comprising:

a support body having a locked position and an unlocked position at each of a plurality of heights;

an imaging site carrier to which one end of a link is connected, the other end of the link being for engaging with the support at the lock position at any height to prevent the height of the imaging site carrier relative to the support from being changed; the other end of the connecting piece is also used for moving along with the imaging part carrier along a first direction relative to the supporting body so as to move from a locking position to an unlocking position at the current height, so that the imaging part carrier is allowed to drive the other end of the connecting piece to be jointed with the supporting body after the other end of the connecting piece moves from the unlocking position at the current height to the unlocking position at the other height; the other end of the connecting piece is also used for moving along with the imaging part carrier along the reverse direction of the first direction relative to the supporting body so as to be engaged with the supporting body after the current height is moved from the unlocking position to the locking position, and therefore the height of the imaging part carrier relative to the supporting body is prevented from being changed.

19. A body coil assembly comprising a body coil support according to any one of claims 1 to 18 and a radio frequency coil mounted on the body coil support.

20. The body coil assembly of claim 19 wherein the radio frequency coil is an ankle coil.

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