阅读说明：本技术 一种核磁共振用金属物品屏蔽隔离装置 (metal object shielding and isolating device for nuclear magnetic resonance ) 是由 信瑞 曲丹华 袁庆海 孙海峰 宫心扣 于 2019-09-14 设计创作，主要内容包括：本发明涉及核磁共振技术领域,且公开了一种核磁共振用金属物品屏蔽隔离装置,包括探测板,所述探测板的内壁活动搭接有压板,压板的下表面活动安装有螺旋杆,螺旋杆的下端活动安装有螺纹柱,螺旋杆的下端贯穿并延伸至螺纹柱的下端固定安装有齿柱,螺纹柱的外表面通过支杆固定安装有固定筒,螺纹柱的下端固定安装有齿柱,齿柱的齿牙处啮合有从动齿轮,从动齿轮的下端固定安装有活动齿轮。通过活动齿轮、固定片与支条的配合使用,可以有效的带动探测板的左右转动,方便全方位的检测患者身上的四周是否携带有金属制品,具备实现全方位无死角的检测,有效避免掉漏检情况的优点。(The invention relates to the technical field of nuclear magnetic resonance, and discloses a metal object shielding and isolating device for nuclear magnetic resonance, which comprises a detection plate, wherein a pressing plate is movably lapped on the inner wall of the detection plate, a screw rod is movably mounted on the lower surface of the pressing plate, a threaded column is movably mounted at the lower end of the screw rod, the lower end of the screw rod penetrates through and extends to the lower end of the threaded column and is fixedly mounted with a tooth column, a fixed cylinder is fixedly mounted on the outer surface of the threaded column through a supporting rod, a tooth column is fixedly mounted at the lower end of the threaded column, a driven gear is meshed at the tooth position of the tooth column, and a movable gear is fixedly mounted. Through the cooperation use of loose gear, stationary blade and branch strip, can effectual drive probe plate the rotation about, whether carry the metal product around convenient omnidirectional detection patient is on one's body, possess the detection that realizes all-round no dead angle, effectively avoid falling the advantage of the hourglass condition of examining.)

1. the utility model provides a nuclear magnetic resonance uses metal object shielding isolating device, includes probe plate (1), its characterized in that: the inner wall movable overlapping of detecting plate (1) has clamp plate (2), the lower surface movable mounting of clamp plate (2) has hob (3), the lower extreme movable mounting of hob (3) has screw thread post (4), the lower extreme of hob (3) runs through and extends to the lower extreme fixed mounting of screw thread post (4) has tooth post (6), branch (5) fixed mounting has a solid fixed cylinder (8) is passed through to the surface of screw thread post (4), the lower extreme fixed mounting of screw thread post (4) has tooth post (6), the meshing of tooth department of tooth post (6) has driven gear (7), the lower extreme fixed mounting of driven gear (7) has loose gear (9), the lower surface movable mounting of loose gear (9) has stationary blade (10), the lower fixed mounting of stationary blade (10) has branch strip (11).

2. The shielding and isolating device for a metal object for nuclear magnetic resonance as claimed in claim 1, wherein: teeth matched with the driven gear (7) are formed in the fixed cylinder (8), and the teeth of the driven gear (7) are meshed with the inner wall of the fixed cylinder (8).

3. the shielding and isolating device for a metal object for nuclear magnetic resonance as claimed in claim 1, wherein: the movable gear (9) is positioned below the fixed cylinder (8), and the distance between the upper surface of the movable gear (9) and the lower end of the fixed cylinder (8) is not less than three millimeters.

4. The shielding and isolating device for a metal object for nuclear magnetic resonance as claimed in claim 1, wherein: the lower surface movable mounting of tooth post (6) has the pillar, and the lower extreme of pillar runs through and extends to the below and the ground fixed connection of stationary blade (10).

5. the shielding and isolating device for a metal object for nuclear magnetic resonance as claimed in claim 1, wherein: the middle part of the fixing piece (10) is provided with a movable hole matched with the support.

6. the shielding and isolating device for a metal object for nuclear magnetic resonance as claimed in claim 1, wherein: the lower end of the detection plate (1) is provided with a sliding chute, the inside of the sliding chute is movably connected with a sliding rod, and the lower end of the sliding rod is fixedly installed on the ground.

7. The shielding and isolating device for a metal object for nuclear magnetic resonance as claimed in claim 1, wherein: and a steel ball is arranged at the joint of the bending part at the lower end of the detection plate (1) and the movable gear (9).

Technical Field

the invention relates to the technical field of nuclear magnetic resonance, in particular to a metal object shielding and isolating device for nuclear magnetic resonance.

Background

the basic principle of nuclear magnetic resonance is that a human body is placed in a special magnetic field, a radio frequency pulse is used for exciting hydrogen nuclei in the human body to cause the hydrogen nuclei to resonate and absorb energy, after the radio frequency pulse is stopped, the hydrogen nuclei send out radio signals according to specific frequency and release the absorbed energy, the signals are recorded by a receiver outside the human body, and an image is obtained through processing of an electronic computer, so that the nuclear magnetic resonance imaging is called.

because nuclear magnetic resonance can generate a huge magnetic field, before nuclear magnetic resonance detection, metal and other objects need to be removed, so that after metal is mistakenly brought into the nuclear magnetic resonance detection, the metal objects are sucked away during the nuclear magnetic resonance so as to cause the nuclear magnetic resonance machine not to work, and meanwhile, metal materials can interfere with magnetic resonance signals to cause unclear photography and influence diagnosis results. When medical staff holds the detector to scan back and forth, scanning dead angles may exist, so that metal objects are not detected, and when the medical staff holds the detector for a long time to detect, manpower is wasted, and the detector is not suitable for long-time use.

in order to solve the above problems, the inventors have proposed a metal object shielding and isolating device for nuclear magnetic resonance, which can detect whether a patient has metal in all directions, and which does not cause a detection result error due to a missing detection, and which also frees up the labor of medical staff.

Disclosure of Invention

the present invention is made to solve the above-mentioned problems in the background art, and an object of the present invention is to provide a metallic shielding and isolating device for nuclear magnetic resonance.

a metal object shielding and isolating device for nuclear magnetic resonance comprises a detection plate, wherein a pressing plate is movably lapped on the inner wall of the detection plate, a screw rod is movably mounted on the lower surface of the pressing plate, a threaded column is movably mounted at the lower end of the screw rod, a tooth column is fixedly mounted at the lower end of the screw rod in a penetrating manner and extends to the lower end of the threaded column, a fixed cylinder is fixedly mounted on the outer surface of the threaded column through a supporting rod, the tooth column is fixedly mounted at the lower end of the threaded column, a driven gear is meshed at the tooth position of the tooth column, a movable gear is fixedly mounted at the lower end of the driven gear, a fixing piece is movably mounted on the lower surface of the movable gear;

Furthermore, teeth matched with the driven gear are formed in the fixed cylinder, and the teeth of the driven gear are meshed with the inner wall of the fixed cylinder, mainly for driving the detection plate to rotate through the rotation of the movable gear;

Furthermore, the movable gear is positioned below the fixed cylinder, and the distance between the upper surface of the movable gear and the lower end of the fixed cylinder is not less than three millimeters, mainly to avoid the movable gear from directly rotating;

Furthermore, a support column is movably mounted on the lower surface of the tooth column, the lower end of the support column penetrates through and extends to the lower part of the fixing sheet to be fixedly connected with the ground, and the support column is mainly used for providing supporting force for the fixing cylinder;

Furthermore, the middle part of the fixing piece is provided with a movable hole matched with the support column, and the movable hole is mainly used for ensuring that the support column can rotate freely;

furthermore, the lower end of the detection plate is provided with a sliding chute, the inside of the sliding chute is movably connected with a sliding rod, and the lower end of the sliding rod is fixedly installed with the ground, so that the detection plate can rotate to play a supporting role;

Furthermore, a steel ball is arranged at the joint of the bending part at the lower end of the detection plate and the movable gear, and is mainly used for reducing friction force and facilitating rotation of the detection plate.

The invention has the following beneficial effects:

1. This metal object shielding isolating device for nuclear magnetic resonance uses through the cooperation of loose gear, stationary blade and branch, can effectual drive the rotation about the probe plate, makes things convenient for whether the omnidirectional detects that whether carry metal product around on the patient body, has made things convenient for the detection at all-round no dead angle, has avoided the condition of lou examining.

2. this metal object shielding isolating device for nuclear magnetic resonance uses through the cooperation of hob and screw thread post, can utilize human self gravity, lets the probe plate take place to rotate, does not need the rotation that other external forces drove the probe plate, has practiced thrift the energy.

3. this metal object shielding isolating device for nuclear magnetic resonance uses through the cooperation of tooth post and driven gear, can effectually drive driven gear's rotation, has guaranteed the rotation of loose gear.

4. This metal object shielding isolating device for nuclear magnetic resonance uses through the cooperation of screw thread post, branch and a fixed section of thick bamboo, can effectually fix for the spiral post, avoids the spiral post because of not having the fixed stay, can rotate along with the hob decline.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic front sectional view of the overall structure of the present invention;

FIG. 3 is a schematic bottom view of the fixing cylinder of the present invention;

FIG. 4 is a schematic top view of the fixing cylinder of the present invention;

Fig. 5 is a bottom sectional view of the fixing cylinder according to the present invention.

In the figure: the device comprises a detection plate 1, a pressing plate 2, a spiral rod 3, a threaded column 4, a supporting rod 5, a toothed column 6, a driven gear 7, a fixed cylinder 8, a movable gear 9, a fixing sheet 10 and a supporting strip 11.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 5, a metal object shielding and isolating device for nuclear magnetic resonance comprises a detection plate 1, a pressing plate 2 movably lapped on the inner wall of the detection plate 1, a screw rod 3 movably mounted on the lower surface of the pressing plate 2, and a threaded column 4 movably mounted at the lower end of the screw rod 3;

The detection plate 1 can rotate by utilizing the gravity of a human body through the matching use of the screw rod 3 and the threaded column 4, and other external force is not needed to drive the detection plate 1 to rotate, so that the energy is saved;

the lower end of the screw rod 3 penetrates through and extends to the lower end of the threaded column 4 to be fixedly provided with a tooth post 6, the outer surface of the threaded column 4 is fixedly provided with a fixed cylinder 8 through a support rod 5, teeth matched with the driven gear 7 are formed in the fixed cylinder 8, the teeth of the driven gear 7 are meshed with the inner wall of the fixed cylinder 8, the detection plate 1 is mainly driven to rotate through the rotation of the movable gear 9, the tooth post 6 is fixedly arranged at the lower end of the threaded column 4, a support column is movably arranged on the lower surface of the tooth post 6, the lower end of the support column penetrates through and extends to the lower part of the fixed plate 10 to be fixedly connected with the ground, and the support column is mainly used for providing supporting force for the;

The threaded column 4, the support rod 5 and the fixing cylinder 8 are matched for use, so that the threaded column 4 can be effectively fixed, and the phenomenon that the threaded column 4 rotates along with the descending of the screw rod 3 due to the fact that no fixed support exists in the threaded column 4 is avoided;

A driven gear 7 is meshed at the teeth of the tooth column 6, and a movable gear 9 is fixedly mounted at the lower end of the driven gear 7;

The toothed column 6 is matched with the driven gear 7, so that the driven gear 7 can be effectively driven to rotate, and the rotation of the movable gear 9 is ensured;

The movable gear 9 is positioned below the fixed cylinder 8, the distance between the upper surface of the movable gear 9 and the lower end of the fixed cylinder 8 is not less than three millimeters, mainly to avoid that the movable gear 9 cannot directly rotate, a fixing piece 10 is movably installed on the lower surface of the movable gear 9, a movable hole matched with the support column is formed in the middle of the fixing piece 10, and mainly to ensure that the support column can freely rotate, a supporting strip 11 is fixedly installed on the lower surface of the fixing piece 10;

the lower end of the detection plate 1 is provided with a sliding chute, the inside of the sliding chute is movably connected with a sliding rod, and the lower end of the sliding rod is fixedly installed with the ground, so that the detection plate 1 can rotate and plays a supporting role;

Wherein, the steel ball is arranged at the joint of the bending part at the lower end of the detection plate 1 and the movable gear 9, mainly for reducing friction force and facilitating the rotation of the detection plate 1;

Wherein, use through the cooperation of loose gear 10, stationary blade 10 and branch 11, can effectual drive probe plate 1 the rotation about, whether convenient all-round detected patient on one's body carry the metal product all around, made things convenient for the detection at all-round no dead angle, avoided the condition of lou examining.

The working principle and the process of the invention are as follows:

When using, let the patient stand on clamp plate 2, hob 3 receives gravity to push down, because set up the screw thread with 3 looks adaptations of hob in the screw thread post 4, so hob 3 can take the clockwise rotation of tooth post 6 when along screw thread post 4 downstream, after 6 clockwise rotations of tooth post, can drive loose gear 9 clockwise rotations through driven gear 7, loose gear 9 is when clockwise rotating, driven movable detecting plate 1 clockwise rotation, the patient who centers on clamp plate 2 rotates and detects the round, if there is the metal, detecting plate 1 then can send the sound, do not need the manual detection of people, not only realized five all-round dead angles of detection, and medical staff's labour has been liberated.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.