CN203149099U

CN203149099U - Shoulder coil assembly

Info

Publication number: CN203149099U
Application number: CN 201320047479
Authority: CN
Inventors: 张强; 邹黔; 周官林
Original assignee: Shanghai United Imaging Healthcare Co Ltd
Current assignee: Shenzhen United Imaging Healthcare Co Ltd
Priority date: 2013-01-29
Filing date: 2013-01-29
Publication date: 2013-08-21
Anticipated expiration: 2023-01-29

Abstract

The utility model discloses a shoulder coil assembly for magnetic resonance imaging; the shoulder coil assembly comprises a first shoulder coil and a second shoulder coil capable of moving relative to the first shoulder coil; the first shoulder coil comprises a first coil and a first housing fixedly holding the first coil; the second shoulder coil comprises a second coil and a second housing fixedly holding the second coil; the first coil comprises at least one first coil unit; the second coil comprises at least one second coil unit; a front end of the first coil unit and a front end of the second coil unit are partially overlapped; and the front end of the first coil unit abuts against the front end of the second coil unit to form an enclosed coil unit. When the first shoulder coil and the second shoulder coil of the shoulder coil assembly are relatively moved, the first coil of the first shoulder coil and the second coil of the second shoulder coil always contact. So the width of the coils can be adjusted, and simultaneously intensity of received signals will not be reduced.

Description

The shoulder coil block

[technical field]

The utility model is relevant a kind of shoulder coil block for magnetic resonance imaging.

[technical background]

Chinese patent application discloses CN101874731A number and has disclosed a kind of shoulder coil block for MR imaging apparatus, it comprises the first shoulder coil and the second shoulder coil that can move relative to the first shoulder coil, the first shoulder coil comprises first housing of first coil, fixing first coil, and the second shoulder coil comprises second coil and fixing second coil and second housing that can move relative to first housing.Yet, after this first shoulder coil and the second shoulder coil separate, can leave a gap between them.When receiving signal, because the existence in gap can make the signal that receives weaken, and then cause the reduction of image imaging quality.

Therefore, necessaryly provide a kind of improved shoulder coil block, to overcome the defective that above-mentioned shoulder coil exists.

[Utility model content]

The purpose of this utility model provides a kind of adjustable width, does not reduce the shoulder coil block of the intensity of received signal simultaneously again.

Shoulder coil block of the present utility model is to be achieved through the following technical solutions: a kind of shoulder coil block for magnetic resonance imaging, it comprises the first shoulder coil and the second shoulder coil that can move relative to the first shoulder coil, the described first shoulder coil comprises first housing of first coil and fixing first coil, the described second shoulder coil comprises second housing of second coil and fixing second coil, described first coil comprises at least one first coil unit, second coil comprises at least one second coil unit, the fore-end of the front end of described first coil unit and second coil unit is overlapping, and the front end that the front end of described first coil unit compresses second coil unit forms closed coil unit.

In preferred embodiment, described shoulder coil block comprises that also at least one has the extension of holding slot, and the front end of the described first shoulder coil, first coil unit and the front end of second coil unit are housed in the holding slot.

In preferred embodiment, described extension is fixed on second housing.

In preferred embodiment, the front end of described first coil unit tilts to extend the front end that compresses second coil unit.

In preferred embodiment, described first housing is provided with accepting groove, and described second housing comprises the connecting portion that stretches in the described accepting groove, is provided with detent mechanism between described first housing and second housing.

In preferred embodiment, described detent mechanism comprises locating slot that the inside surface from accepting groove outwards is recessed to form, be located at the standing groove of connecting portion and place keeper in the standing groove, also is provided with the fixed block that keeper is retained on standing groove that is positioned at its port and the elastic component that applies outside elastic force to keeper in the described standing groove.

In preferred embodiment, described elastic component is spring, and described keeper comprises main part, independently an end of body stretches out and can stretch into the protuberance in the locating slot and stretch into the interior afterbody of spring.

In preferred embodiment, described locating slot along accepting groove axially on evenly distribute.

In preferred embodiment, described first housing comprises first inner casing of fixing first coil and is provided with first shell of accepting groove that described second housing comprises second inner casing of fixing second coil and is provided with second shell of connecting portion.

In preferred embodiment, described shoulder coil block also comprises the bottom, and described bottom comprises the 3rd housing and be immobilizated in the interior tertiary coil of the 3rd housing that described first coil, second coil and tertiary coil form scanning space.

Compared with prior art, shoulder coil block of the present utility model is when the first shoulder coil and the second shoulder coil relatively move, and the second interior coil of first coil in the first shoulder coil and the second shoulder coil contacts all the time.So arrange, in energy regulating winding width, do not reduce the intensity of received signal again.

[description of drawings]

Fig. 1 is the stereographic map of the utility model shoulder coil block.

Fig. 2 is the stereographic map of coil in the utility model shoulder coil block.

Fig. 3 is the vertical view of the utility model shoulder coil block.

Fig. 4 be among Fig. 3 A-A to cut-open view.

Fig. 5 is the partial enlarged drawing at B place among Fig. 4.

Fig. 6 is the partial enlarged drawing at C place among Fig. 4.

Fig. 7 is the partial enlarged drawing at D place among Fig. 4.

Fig. 8 is the stereographic map of the utility model shoulder coil block when drawing back.

Fig. 9 is the three-dimensional exploded view of the utility model shoulder coil block.

The three-dimensional exploded view of coil in Figure 10 the utility model shoulder coil block.

[embodiment]

See also Fig. 1 to shown in Figure 10, the utility model is a kind of shoulder coil block 100 for MR imaging apparatus, it comprise the first shoulder coil 1, can be relative to the second shoulder coil 2 and the bottom 3 that the first shoulder coil 1 moves.

See also Fig. 4 and shown in Figure 9, the first shoulder coil 1 comprises first housing of first coil 13 and fixing first coil 13.First housing comprises first inner casing 12 of fixing first coil 13 and fits together first shell 11 that the part with first coil 13 covers up with first inner casing 12.In the present embodiment, first inner casing 12 is retained on first shell 11 by screw (not shown).

First coil 13 comprises that the front end 1311 of first coil unit, 131, the first coil units 131 stretches out from the bottom of first housing downwards.First shell 11 is provided with cylindrical accepting groove 111, is provided with the curved locating slot 1111 that outwards is recessed to form from its inside surface in this accepting groove 111.This locating slot 1111 axially equidistantly distributes accepting groove 111.

Please further consult shown in 6, these first coil, 13 usefulness glue are retained on the upper surface of first inner casing 12, so arrange, and first coil 13 can be retained on first inner casing 12 securely.

See also Fig. 4 and shown in Figure 9, the second shoulder coil 2 comprises and second coil 23 of first coil, 13 separable settings and fixing second coil 23 and second housing that can move relative to first housing.Second housing comprises second inner casing 22 and fits together second shell 21 that second coil 23 is covered up with second inner casing 22.Second shell 21 comprises base portion 211, extend upward the cylindrical connecting portion 212 of formation and the cylindrical holding parts 213 that extends to form from the lower ends downward of base portion 211 from the upper end of base portion 211.Connecting portion 212 is housed in the accepting groove 111, and what make that the first shoulder coil 1 and the second shoulder coil 2 can be along accepting groove 111 axially does relative motion.Connecting portion 212 is provided with standing groove 2121 and anti-transfer part 2122.

Please further consult shown in Figure 5ly, be provided with keeper 40 in the standing groove 2121, be positioned at the port and keeper 40 is retained on the fixed block 50 of standing groove 2121 and apply the spring 60 of elastic force to keeper 40.Keeper 40 comprises that an end of main part 402, autonomous body 402 stretches out and can stretch into the protuberance 401 in the locating slot 1111 and stretch into afterbody 403 in the spring 60.Because the cooperation of locating slot 1111 and protuberance 401 can be played the positioning action that makes between the first shoulder coil 1 and the second shoulder coil 2.

Please further consult shown in Figure 7ly, these second coil, 23 usefulness glue are retained on the upper surface of second inner casing 22, so arrange, and second coil 23 can be retained on second inner casing 22 securely.

See also Fig. 2,4,9 and shown in Figure 10, second inner casing 22 comprises curved portions 221 and the extension 222 in curved portions 221 extends upward and can stretch into first inner casing 12.This extension 222 is fixed on second inner casing 22, is provided with holding slot 2221 in it.Second coil 23 comprises second coil unit 231.The front end 1311 of first coil unit 131 and the front end 2311 of second coil unit 231 all are housed in the holding slot 2221, and the front end 1311 of first coil unit 131 and the front end 2311 of second coil unit 231 are overlapped, and the front end 1311 of first coil unit 131 tilts to compress the closed coil unit 24 of front end 2311 formation of second coil unit 231 to the front end 2311 of second coil unit 231.So arrange, when the first shoulder coil 1 and the second shoulder coil 2 relatively moved, the second interior coil 23 of first coil 13 in the first shoulder coil 1 and the second shoulder coil 2 contacted all the time.

See also Fig. 2,4 and shown in Figure 9, this bottom 3 comprises the 3rd housing 31 and is retained on tertiary coil 32 in the 3rd housing 31.First coil 13, second coil 23 and tertiary coil 32 form the scanning space 70 of accommodating shoulder.The 3rd housing 31 is provided with the link slot 311 of accommodating holding parts 213.The plane at connecting portion 212 and the 3rd housing 31 places is perpendicular, and connecting portion 212 parallels with the axis of holding parts 213.

The above only is a kind of embodiment of the present utility model, it or not whole or unique embodiment, the variation of any equivalence that those of ordinary skills take technical solutions of the utility model by reading the utility model instructions is claim of the present utility model and contains.

Claims

1. shoulder coil block that is used for magnetic resonance imaging, it comprises the first shoulder coil and the second shoulder coil that can move relative to the first shoulder coil, the described first shoulder coil comprises first housing of first coil and fixing first coil, the described second shoulder coil comprises second housing of second coil and fixing second coil, it is characterized in that: described first coil comprises at least one first coil unit, second coil comprises at least one second coil unit, the fore-end of the front end of described first coil unit and second coil unit is overlapping, and the front end that the front end of described first coil unit compresses second coil unit forms closed coil unit.

2. shoulder coil block as claimed in claim 1, it is characterized in that: described shoulder coil block comprises that also at least one has the extension of holding slot, and the front end of the described first shoulder coil, first coil unit and the front end of second coil unit are housed in the holding slot.

3. shoulder coil block as claimed in claim 2, it is characterized in that: described extension is fixed on second housing.

4. shoulder coil block as claimed in claim 1 is characterized in that: the front end of described first coil unit tilts to extend the front end that compresses second coil unit.

5. shoulder coil block as claimed in claim 1, it is characterized in that: described first housing is provided with accepting groove, and described second housing comprises the connecting portion that stretches in the described accepting groove, is provided with detent mechanism between described first housing and second housing.

6. shoulder coil block as claimed in claim 5, it is characterized in that: described detent mechanism comprises locating slot that the inside surface from accepting groove outwards is recessed to form, be located at the standing groove of connecting portion and place keeper in the standing groove, also is provided with the fixed block that keeper is retained on standing groove that is positioned at its port and the elastic component that applies outside elastic force to keeper in the described standing groove.

7. shoulder coil block as claimed in claim 6, it is characterized in that: described elastic component is spring, described keeper comprises that an end of main part, autonomous body stretches out and can stretch into the protuberance in the locating slot and stretch into afterbody in the spring.

8. as claim 5 or 6 described shoulder coil blocks, it is characterized in that: described locating slot along accepting groove axially on evenly distribute.

9. as claim 5 or 6 described shoulder coil blocks, it is characterized in that: described first housing comprises first inner casing of fixing first coil and is provided with first shell of accepting groove that described second housing comprises second inner casing of fixing second coil and is provided with second shell of connecting portion.

10. shoulder coil block as claimed in claim 9, it is characterized in that: described shoulder coil block also comprises the bottom, described bottom comprises the 3rd housing and is immobilizated in the interior tertiary coil of the 3rd housing that described first coil, second coil and tertiary coil form scanning space.