CN112220473A - MR imaging device based on electrocardio gate control technology - Google Patents
MR imaging device based on electrocardio gate control technology Download PDFInfo
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- CN112220473A CN112220473A CN202011115203.7A CN202011115203A CN112220473A CN 112220473 A CN112220473 A CN 112220473A CN 202011115203 A CN202011115203 A CN 202011115203A CN 112220473 A CN112220473 A CN 112220473A
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Abstract
The invention discloses an MR imaging device based on an electrocardio gate control technology, which comprises a placing box, wherein a placing cavity is arranged in the placing box, a clamping mechanism is arranged in the placing cavity, the clamping mechanism comprises an arc-shaped mounting box which is rotatably mounted in the placing cavity, a rotating shaft which is in rotating fit with the end wall of the outer side of the placing cavity is symmetrically and fixedly mounted on the left side and the right side of the end surface of the outer side of the mounting box relative to the center, and a mounting cavity is arranged in the mounting box. Carry out centre gripping and stability to the patient, and cause the patient to cause the discomfort in the inspection process through avoiding excessive centre gripping to can guarantee the stability of patient when the inspection, and through according to actual need with patient inclination, and guarantee that the patient can not produce when the patient inclines and rock and remove, cause the influence when avoiding the image data shaping of inspection.
Description
Technical Field
The invention relates to the technical field of MR imaging of an electrocardio-gating technology, in particular to MR imaging equipment based on the electrocardio-gating technology.
Background
In medical clinical imaging examination, due to movement of tissues or organs (for example, respiration, heartbeat, etc.), imaging devices (including ultrasound, X-ray CT, MRI, etc.) are prone to generate artifacts, thereby reducing the resolution and diagnostic value of images. The cardiac gating is a technical means for reducing or eliminating the influence of the pulsation of the large blood vessels of the heart on the image, and finally reconstructing the desired image data from the acquired raw data through the MR imaging. However, in the clinical examination, the patient is required to lie on the examination table for examination, and if the patient is not properly stabilized during the examination, the patient is likely to be tilted and moved, which affects the examination result, and if the patient cannot be tilted as required during the formation of the image data for examination, the image data is affected.
Disclosure of Invention
The invention aims to provide an MR imaging device based on an electrocardio-gating technology, and solves the problems that the stabilization effect is poor during patient examination and the patient cannot be stabilized during rotation examination.
The invention is realized by the following technical scheme.
The invention relates to MR imaging equipment based on an electrocardio-gating technology, which comprises a placing box, wherein a placing cavity is arranged in the placing box, a clamping mechanism is arranged in the placing cavity, the clamping mechanism comprises an arc-shaped mounting box which is rotatably mounted in the placing cavity, a rotating shaft which is rotatably matched with the end wall of the outer side of the placing cavity is symmetrically and fixedly mounted on the left side and the right side of the end surface of the outer side of the mounting box relative to the center, a mounting cavity is arranged in the mounting box, arc-shaped moving grooves are symmetrically arranged in the end wall of the outer side of the mounting cavity relative to the center in the front and back direction, arc-shaped moving blocks are slidably mounted in the moving grooves on the front side and the back side, three T-shaped driving grooves with upward openings are arranged in a rectangular array in the moving blocks, driving racks connected into the mounting cavity are slidably mounted in grooves of the driving grooves, the clamping shaft provided with a torsion spring is installed in the end wall on the outer side of the driving groove in a left-right mode relative to the driving rack in a symmetrical rotating mode, a clamping gear meshed with the driving rack is fixedly installed on the clamping shaft, a clamping rod which is located on the front side of the clamping gear and can stretch up and down and form an L shape is further fixedly installed on the clamping shaft, an adjusting mechanism is arranged in the installation cavity and comprises a placing opening fixedly installed in the arc surface at the lower end of the installation box and connected with the installation cavity and the placing cavity, a transmission shaft is installed in the right end face of the placing opening in a rotating mode, a transmission sleeve is fixedly installed on the transmission shaft, an extension groove is formed in the transmission sleeve in an up-down mode relative to the center in a symmetrical mode, an arc-shaped block with an inclined plane is installed in the extension groove in a sliding, the arc wall of installation cavity lower extreme arc wall fixed mounting have the spill and with transmission shaft normal running fit's connecting block, it is equipped with stabilizing mean to place the intracavity.
Preferably, the clamping mechanism further comprises a fixed block fixedly mounted on the left end wall of the mounting cavity, the upper end of the fixed block is in power connection with a threaded shaft, an internal threaded sleeve in threaded connection with the threaded shaft is mounted in the movable block in a rotating mode, a detection table is fixedly mounted on the upper end face of the mounting box, sliding grooves are symmetrically formed in the upper end face of the mounting box front and back relative to the detection table, sliding blocks with inclined planes and provided with telescopic plates are mounted in the sliding grooves in a sliding mode, and sliding springs are fixedly connected between the outer end face of each sliding block and the outer end wall of each sliding groove.
Preferably, fixture is still including setting up the L shape just has the centre gripping groove of cambered surface in the supporting rod, sliding installation has along centre gripping inslot orbit rectangle permutation is equipped with the grip block two of three mutual articulated connections, grip block two is kept away from the outside end face of drive rack side with the centre gripping groove is kept away from fixedly connected with centre gripping spring two between the outside end wall of drive rack side, sliding installation has along the whole permutation of centre gripping groove straight line orbit rectangle is equipped with two mutual articulated grip block one, grip block one is kept away from the outside end face of drive rack side with the centre gripping groove is kept away from fixedly connected with centre gripping spring one between the outside end wall of drive rack side.
Preferably, the adjusting mechanism further comprises a transmission gear fixedly installed on the transmission shaft and located on the left side of the connecting block, the lower end of the motor is in power connection with a driving shaft, a first bevel gear is fixedly installed on the driving shaft, a second bevel gear which is located on the left side of the transmission gear and meshed with the first bevel gear is further fixedly installed on the transmission shaft, fifteen connecting grooves are formed in the rectangular array in the right end face of the transmission gear, and a transmission rack meshed with the transmission gear is fixedly installed on the lower end face of the placing cavity.
Preferably, adjustment mechanism is still including setting up the stable groove in the connecting block right side left end wall, it has and is connected to stabilize inslot slidable mounting the connecting block left side and extend to with spread groove sliding fit's steady piece, stabilize the piece right-hand member face with fixedly connected with stabilizing spring between the stable groove right-hand member wall, stabilizing spring elasticity is less than extending spring elasticity, be equipped with the inclined plane groove in the stable piece lower extreme terminal surface.
Preferably, the stabilizing mechanism comprises a placing plate which is fixedly arranged on the upper end face of the placing box in a front-back manner and is symmetrical relative to the detection table, the placing plate is close to a connecting rod which is arranged on the left side and the right side of the inner side end face of the detection table, is symmetrical relative to the middle driving rack, is hinged and connected with the connecting rod and can stretch out and draw back in the front-back manner, the connecting rod is close to the inner side end face of the detection table, is hinged and connected with a placing block which is provided with an arc face and is in sliding fit with the upper end face of.
The invention has the beneficial effects that: according to the invention, the patient is placed on the inspection table, the patient is clamped and stabilized, discomfort of the patient in the inspection process is avoided due to excessive clamping, the stability of the patient in the inspection process can be ensured, the patient is inclined according to actual requirements, and the patient is prevented from shaking and moving when the patient is inclined, so that the influence caused in the formation of the image data of the inspection is avoided, and the effect of image formation inspection is better.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of A-A in FIG. 1 according to an embodiment of the present invention;
FIG. 3 is an enlarged schematic view of the embodiment of the present invention at B in FIG. 1;
FIG. 4 is an enlarged schematic view of the embodiment of the present invention at C in FIG. 2;
FIG. 5 is a schematic diagram of D-D shown in FIG. 3 according to an embodiment of the present invention.
Detailed Description
The invention will now be described in detail with reference to fig. 1-5, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
The MR imaging device based on the ecg gating technology, which is described with reference to fig. 1-5, includes a placement box 33, a placement cavity 57 is provided in the placement box 33, a clamping mechanism 59 capable of clamping and stabilizing a patient and avoiding discomfort of the patient during an examination due to excessive clamping is provided in the placement cavity 57, the clamping mechanism 59 includes an arc-shaped installation box 10 rotatably installed in the placement cavity 57, a rotation shaft 17 rotatably fitted to an outer side end wall of the placement cavity 57 is fixedly installed on a left side and a right side of an outer side end face of the installation box 10 symmetrically with respect to a center, an installation cavity 11 is provided in the installation box 10, arc-shaped moving grooves 24 are symmetrically provided in a front side and a rear side of an outer side end wall of the installation cavity 11 with respect to the center, arc-shaped moving blocks 16 are slidably installed in the moving grooves 24 on the front side and the rear side, a rectangular array in the moving blocks 16 is provided with three T, sliding mounting has the drive rack 23 that is connected to in the installation cavity 11 in the recess of drive groove 25, under drive rack 23 terminal surface with drive groove 25 recess fixedly connected with drive spring 26 between the end wall, drive about in the end wall of drive groove 25 outside for drive rack 23 symmetrical rotation installs the centre gripping axle 45 that is equipped with the torsional spring, fixed mounting has on the centre gripping axle 45 with the centre gripping gear 46 of drive rack 23 meshing, it is located still fixed mounting on the centre gripping axle 45 the centre gripping pole 44 that is located centre gripping gear 46 front side and can stretch out and draw back and L shape from top to bottom to go up, be equipped with in the installation cavity 11 and fix and form the adjustment mechanism 61 of good image forming inspection effect with patient's inclination according to the actual demand, adjustment mechanism 61 includes fixed mounting is in the installation box 10 lower extreme cambered surface be equipped with and connect installation cavity 11 and place the mouth 56 of placing cavity 57, place mouthful 56 right-hand member in the interior rotation and install transmission shaft 29, fixed mounting has transmission sleeve 51 on the transmission shaft 29, be equipped with extension groove 50 for central symmetry from top to bottom in transmission sleeve 51, slidable mounting has the arc piece 48 that has the inclined plane in the extension groove 50, arc piece 48 medial surface with fixedly connected with extension spring 49 between the 50 inboard end walls of extension groove, installation cavity 11 lower extreme arc wall fixed mounting have the spill and with transmission shaft 29 normal running fit's connecting block 27, it is equipped with the stabilizing mean 60 that can guarantee to avoid rocking and remove the slope with the patient when rotating to place the intracavity 57.
Beneficially, the clamping mechanism 59 further includes a fixed block 12 fixedly installed on the left end wall of the installation cavity 11, the upper end of the fixed block 12 is dynamically connected with a threaded shaft 14, an internal threaded sleeve 15 in threaded connection with the threaded shaft 14 is rotatably installed in the moving block 16, the upper end face of the installation box 10 is fixedly installed with a detection table 19, sliding grooves 38 are symmetrically arranged in the upper end face of the installation box 10 front and back relative to the detection table 19, sliding blocks 40 having inclined planes and provided with telescopic plates are slidably installed in the sliding grooves 38, sliding springs 39 are fixedly connected between the outer end face of the sliding block 40 and the outer end wall of the sliding groove 38, and the threaded shaft 14 rotates to promote threaded transmission between the threaded shaft 14 and the internal threaded sleeve 15, so that the internal threaded sleeve 15 drives the moving block 16 to move upwards.
Beneficially, the clamping mechanism 59 further includes an L-shaped clamping slot 42 with an arc surface, which is disposed in the clamping rod 44, three clamping blocks two 22 hinged to each other are slidably mounted in the clamping slot 42 along a rectangular array of tracks of the clamping slot 42, a clamping spring two 43 is fixedly connected between an outer end surface of the clamping block two 22 away from the driving rack 23 and an outer end wall of the clamping slot 42 away from the driving rack 23, two clamping blocks one 21 hinged to each other are slidably mounted in the clamping slot 42 along a linear track rectangular array of the clamping slot 42, a clamping spring one 41 is fixedly connected between an outer end surface of the clamping block one 21 away from the driving rack 23 and an outer end wall of the clamping slot 42 away from the driving rack 23, and the patient is clamped by the clamping blocks two 22 and the clamping blocks one 21, avoid the discomfort of the patient in the examination process caused by excessive clamping.
Advantageously, the adjusting mechanism 61 further comprises a transmission gear 28 fixedly installed on the transmission shaft 29 and located at the left side of the connecting block 27, the lower end of the motor 13 is in power connection with a driving shaft 31, a first bevel gear 32 is fixedly installed on the driving shaft 31, a second bevel gear 30 located at the left side of the transmission gear 28 and meshed with the first bevel gear 32 is also fixedly installed on the transmission shaft 29, fifteen connecting grooves 47 are arranged in a rectangular array in the right end face of the transmission gear 28, a transmission rack 34 meshed with the transmission gear 28 is fixedly installed on the lower end face of the placing cavity 57, the driving shaft 31 is driven to rotate through meshing transmission between the first bevel gear 32 and the second bevel gear 30 through rotation of the driving shaft 31, so that the transmission shaft 29 is caused to rotate, and the adjusting mechanism 61 further comprises a stabilizing groove 53 arranged in the left end face of the, sliding mounting has in the steady groove 53 be connected to connecting block 27 the left side and extend to with connecting groove 47 sliding fit's stable piece 54, stable piece 54 right-hand member face with fixedly connected with stabilizing spring 52 between the steady groove 53 right-hand member wall, stabilizing spring 52 elasticity is less than extension spring 49 elasticity, be equipped with inclined plane groove 55 in the stable piece 54 lower terminal surface, through the rotatory drive of transmission shaft 29 transmission sleeve 51 rotates, makes arc piece 48 is in outside under the effect of extension spring 49 elasticity moves.
Beneficially, the stabilizing mechanism 60 includes a placing plate 18 which is fixedly mounted on the upper end surface of the placing box 33 in a front-back symmetrical manner with respect to the detection table 19, a connecting rod 37 which is hinged and connected symmetrically with respect to the driving rack 23 in the middle and can be extended and retracted back and forth is disposed on the placing plate 18 close to the inner end surface of the detection table 19 in a left-right symmetrical manner, a placing block 20 which has an arc surface and is in sliding fit with the upper end surface of the mounting box 10 is hinged and connected to the connecting rod 37 close to the inner end surface of the detection table 19 in a hinged manner, an MR imager 58 is fixedly mounted on the left end surface of the placing box 33, the patient is stabilized by the placing block 20, and the patient can be prevented from shaking and moving during.
In the initial state, the slide spring 39 is in an undeformed state, the clamp springs one 41 and two 43 are in an undeformed state, the drive spring 26 is in an undeformed state, the extension spring 49 is in an undeformed state, and the stabilization spring 52 is in an undeformed state.
When a patient lies on the detection table 19 and needs to pass the examination, the motor 13 is started, the threaded shaft 14 is rotated, the threaded transmission between the threaded shaft 14 and the internally threaded sleeve 15 is promoted, the internally threaded sleeve 15 drives the moving block 16 to move upwards, when the moving block 16 moves upwards, the sliding block 40 is pushed to move towards the direction far away from the detection table 19 side, the moving block 16 moves out of the installation box 10, the moving block 16 moves upwards, when the driving rack 23 abuts against the upper end wall of the installation cavity 11 and the moving block 16 does not move upwards, the clamping shaft 45 is caused to rotate through the meshing transmission between the driving rack 23 and the clamping gear 46, the clamping shaft 45 is promoted to drive the clamping rod 44 to rotate towards the driving rack 23 side, the patient is clamped through the clamping blocks two 22 and the clamping block one 21, and the discomfort caused by the excessive clamping of the patient in the examination process is avoided, and the examination result is subjected to image forming by an MR imager 58;
if the inclination angle of the patient needs to be checked, the motor 13 is started to rotate the driving shaft 31, the driving shaft 31 is driven to rotate through the meshing transmission between the first bevel gear 32 and the second bevel gear 30, the transmission shaft 29 is driven to rotate, the transmission sleeve 51 rotates, the arc-shaped block 48 is driven to move outwards under the action of the elastic force of the extension spring 49, the upper inclined surface of the arc-shaped block 48 is in sliding fit with the inclined surface groove 55, the arc-shaped block 48 moves rightwards, the transmission gear 28 can rotate, the transmission gear 28 rotates and is meshed with the transmission rack 34, the installation box 10 is driven to rotate around the rotating shaft 17 by a corresponding angle to change the angle of the patient to be checked, the image effect of the patient checking result is better and obvious, the patient is stabilized through the placing block 20, the patient can be prevented from shaking and moving in the rotating process of the installation cavity 11, and the, and the effect of image forming examination is better, and after the patient examination is finished, the device returns to the initial position.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (6)
1. An MR imaging device based on electrocardio gating technology, including placing the case, its characterized in that: a placing cavity is arranged in the placing box, a clamping mechanism is arranged in the placing cavity, the clamping mechanism comprises an arc-shaped mounting box which is rotatably mounted in the placing cavity, the left side and the right side of the end surface of the outer side of the mounting box are symmetrically and fixedly provided with a rotating shaft which is in rotating fit with the end wall of the outer side of the placing cavity relative to the center, a mounting cavity is arranged in the mounting box, arc-shaped moving grooves are symmetrically arranged in the end wall of the outer side of the mounting cavity relative to the center, arc-shaped moving blocks are slidably mounted in the moving grooves on the front side and the rear side, three T-shaped driving grooves with upward openings are arranged in the rectangular array in the moving blocks, driving racks connected into the mounting cavity are slidably mounted in grooves of the driving grooves, a driving spring is fixedly connected between the lower end surface of the driving rack and the lower end wall of the groove of the driving groove, and, the clamping shaft is fixedly provided with a clamping gear meshed with the driving rack, the clamping shaft is also fixedly provided with a clamping rod which is positioned at the front side of the clamping gear and can stretch up and down and is L-shaped, the installation cavity is internally provided with an adjusting mechanism, the adjusting mechanism comprises a placing opening which is fixedly arranged in the cambered surface at the lower end of the installation box and is connected with the installation cavity and the placing cavity, the right end surface of the placing opening is internally and rotatably provided with a transmission shaft, the transmission shaft is fixedly provided with a transmission sleeve, the transmission sleeve is internally and vertically provided with extending grooves which are symmetrical relative to the center, the extending grooves are internally and slidably provided with arc blocks with inclined planes, an extending spring is fixedly connected between the inner side end surface of each arc block and the inner side end wall of each extending groove, and the lower end arc wall of the installation cavity is fixedly, and a stabilizing mechanism is arranged in the placing cavity.
2. An MR imaging apparatus based on cardiac gating according to claim 1, wherein: the fixture still includes fixed mounting and is in the fixed block of installation cavity left end wall, fixed block upper end power connection has the screw thread axle, the movable block internal rotation install with screw thread axle threaded connection's internal thread sleeve, install the installation box up end fixed mounting have examine test table, the installation box up end in the front and back for it is equipped with the sliding groove to examine test table symmetry, sliding installation has the sliding block that has the inclined plane and be equipped with the expansion plate in the sliding groove, sliding block outside terminal surface with fixedly connected with sliding spring between the sliding groove outside end wall.
3. An MR imaging apparatus based on cardiac gating according to claim 1, wherein: fixture is still including setting up L shape just has the centre gripping groove of cambered surface in the supporting rod, centre gripping inslot slidable mounting have along centre gripping groove orbit rectangle permutation is equipped with the grip block two of three mutual articulated connections, grip block two is kept away from the outside end face of drive rack side with the centre gripping groove is kept away from fixedly connected with centre gripping spring two between the outside end wall of drive rack side, slidable mounting has along centre gripping groove straight line orbit rectangle permutation is equipped with two mutual articulated grip block one, grip block one is kept away from the outside end face of drive rack side with the centre gripping groove is kept away from fixedly connected with centre gripping spring one between the outside end wall of drive rack side.
4. An MR imaging apparatus based on cardiac gating according to claim 2, wherein: the adjusting mechanism further comprises a transmission gear which is fixedly installed on the transmission shaft and located on the left side of the connecting block, the lower end of the motor is in power connection with a driving shaft, a first bevel gear is fixedly installed on the driving shaft, a second bevel gear which is located on the left side of the transmission gear and meshed with the first bevel gear is further fixedly installed on the transmission shaft, fifteen connecting grooves are formed in the rectangular array in the right end face of the transmission gear, and a transmission rack which is meshed with the transmission gear is fixedly installed on the lower end face of the placing cavity.
5. An MR imaging apparatus based on cardiac gating according to claim 4, wherein: adjustment mechanism is still including setting up the stable groove in the connecting block right side left end wall, it has and is connected to stabilize inslot slidable mounting the connecting block left side extend to with spread groove sliding fit's steady piece, stabilize the piece right-hand member face with fixedly connected with stabilizing spring between the stable groove right-hand member wall, stabilizing spring elasticity is less than extension spring elasticity, be equipped with the inclined plane groove in the stable piece lower extreme facial features.
6. An MR imaging apparatus based on cardiac gating according to claim 1, wherein: stabilizing mean including the front and back for detect the platform symmetry fixed mounting place the board of placing of case up end, it is close to place the board detect the platform side medial surface left and right sides for the centre drive rack symmetry and articulated connect and can be around flexible connecting rod, the connecting rod be close to detect platform side medial surface articulated connect have the cambered surface and with install bin up end sliding fit's place the piece, it has MR imager to place case left end fixed mounting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011115203.7A CN112220473A (en) | 2020-10-19 | 2020-10-19 | MR imaging device based on electrocardio gate control technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011115203.7A CN112220473A (en) | 2020-10-19 | 2020-10-19 | MR imaging device based on electrocardio gate control technology |
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| Publication Number | Publication Date |
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| CN112220473A true CN112220473A (en) | 2021-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011115203.7A Pending CN112220473A (en) | 2020-10-19 | 2020-10-19 | MR imaging device based on electrocardio gate control technology |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203749440U (en) * | 2014-04-12 | 2014-08-06 | 刘庆艳 | Novel special skull CT (computed tomography) scanning fixing device |
| CN107320104A (en) * | 2017-07-19 | 2017-11-07 | 深圳市贝优通新能源技术开发有限公司 | A kind of observation reliable NMR based on Internet of Things |
| CN109805952A (en) * | 2019-03-08 | 2019-05-28 | 吉林大学 | A kind of image check posture puts fixed device |
| CN211534483U (en) * | 2019-11-21 | 2020-09-22 | 河南大学 | Fixing device for cardio cerebrovascular radiography |
| CN211674298U (en) * | 2020-02-24 | 2020-10-16 | 江苏盛泽医院 | Position strutting arrangement for radiology department |
-
2020
- 2020-10-19 CN CN202011115203.7A patent/CN112220473A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203749440U (en) * | 2014-04-12 | 2014-08-06 | 刘庆艳 | Novel special skull CT (computed tomography) scanning fixing device |
| CN107320104A (en) * | 2017-07-19 | 2017-11-07 | 深圳市贝优通新能源技术开发有限公司 | A kind of observation reliable NMR based on Internet of Things |
| CN109805952A (en) * | 2019-03-08 | 2019-05-28 | 吉林大学 | A kind of image check posture puts fixed device |
| CN211534483U (en) * | 2019-11-21 | 2020-09-22 | 河南大学 | Fixing device for cardio cerebrovascular radiography |
| CN211674298U (en) * | 2020-02-24 | 2020-10-16 | 江苏盛泽医院 | Position strutting arrangement for radiology department |
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Application publication date: 20210115 |