KR20140121799A - A Shield door for MRI - Google Patents

Abstract

The present invention is provided to prevent a spacing (crevice) from being generated between a shielding door and a bottom surface without forming a sill at an entrance of a shield room. And, more specifically, the present invention provides a shielding door for magnetic resonance imaging which is characterized in being configured such that a user can close or open the entrance (2) by raising or lowering a blocking body (7) using a rotational movement of a handle (10). By using the present invention, open and close operations are facilitated without using electric power, such that the shielding door is easily opened or closed. Furthermore, operation reliability and stability are improved.

Description

{A Shield door for MRI}

The present invention relates to a shielding door provided in an entrance door of an MIR-Shield room in which an MEA, which is a medical diagnostic device, is arranged to control entrance and exit of the MIR-shield, and more specifically, (Gap) between the shielding door and the bottom surface without constituting a step formed at the entrance and exit (for example, a 'threshold barrier'). Particularly, So that the door can be easily opened and closed, and reliability of the operation can be ensured and the door can be stably used.

Generally, the MRI detects the energy release due to the interaction between the high frequency and the hydrogen nuclei (proton) in the human body in a test apparatus with a large magnetic field.

MRI (Magnetic Resonance Imaging) is generally used in medical fields such as hospitals and is installed in a certain shield room to be used as a high-tech equipment for detecting the presence or absence of a patient's body abnormality.

Accordingly, the MRI-shielded room is formed as a ferromagnetic region in operation during operation, so that the indoor and outdoor shielding must be maintained.

At this time, in the conventional shield room, the shielding fingers are wrapped around the edges of the shielding door which are opened and closed by the hinges to completely shield the doorway, and the shielding fingers are pressed to the door storage grooves of the door frame Closing of the shielding door, the indoor / outdoor shielding of the substantial shielding room is achieved when the shielding door is closed (closed).

The door frame of the shield room must be shielded to a lower end portion where the shielding application is closed in order to maintain indoor / outdoor airtightness (shielding) together with the shielding application. For this purpose, And the door is in contact with or pressed against the shielding fingers of the bottom portion of the shielding door so as to realize the above-described complete shielding.

However, as described above, in the conventional door frame, a separate entrance step is formed at the lower end portion of the door frame, which is in contact with the shielding usable part for the complete shielding of the shielding room. As a result, It is an inconvenience to access patients and other medical transportation means.

Accordingly, apparatuses capable of removing the above-mentioned entrance and exit steps and preventing a clearance between the shielding door and the floor surface have been proposed in recent years.

Korean Patent Registration No. 10-771429 (name: Semiautomatic Shielding Door for Micro Eyeshield), as described in the publication, is a frame which connects square ends and is mounted on an entrance of a shield room and is formed at a lower end connecting the front end A door frame comprising a door rail, a door storage groove formed at one end in the thickness direction of the square tip, and a door locker and a proximity sensor at one side of the door storage groove; A key set formed to intermittently open and close a door main body opened and closed by the hinge, and a bottom bottom opening of the outer peripheral surface of the door main body, A shielding door provided with a shielding finger plate formed on the rim except for the bottom bottom; A signal check unit for confirming whether or not a check is made with the proximity sensor so as to encourage internal and external shielding of the shielding door by bringing the gap between the bottom of the bottom of the shielding door and the door rail of the door frame into tight contact with each other, A semi-automobile closing part having a shield driving part which is interlocked and accommodated in an opened bottom part of the shielding door so as to closely contact the gap between the bottom of the bottom part of the shielding door and the door rail; .

Accordingly, door rails formed in the same line as the ground surface are formed so as not to generate a step (for example, a door handle) formed at the doorway when the shielding door is formed to control indoor and outdoor shading by controlling the entrance and exit, And the bottom part of the bottom of the shielding door is completely shielded by the semi-automobile closing part having the transfer cylinder and the finger for shielding in the gap space generated when the docking (closing) is performed by the hinged door type. The transporting of the conveying means is facilitated and the shielding performance is ensured in an optimum state.

In Korean Patent Registration No. 10-1047999 (name: Semiautomatic Shielding Door for Micro Eyeshield), the left side, the upper side and the right side except for the lower side are formed as a frame as a frame to form an entrance of a shield room, A door rail is formed on the lower side of the front end so as to connect the left and right ends of the neighboring left and right sides without a step to the ground, and a shielding shield plate is coupled to the inner circumferential surface in the thickness direction of the left, A door frame having a door locker and an opening / closing confirmation sensor is formed on one side of the left front end of the shielding plate; Wherein the hinge is formed to be fixedly coupled to the right end of the door frame, and when the door body is closed by the hinge, the door locker of the door frame The door frame is provided with a key set at one end of the door body so as to intermittently open and close the door body, a bottom bottom portion having a bottom opened at the lower end of the front end of the outer periphery of the door body, A shielding door formed with shielding finger plates so as to correspond to the shielding shielding plates formed at the left, upper, and right ends; Wherein the bottom surface of the bottom door and the door rail are formed in the lower portion of the door so that the bottom surface and the door rail are opened or closed according to the opening and closing of the door main body. And a bottom shielding finger protruding from the bottom of the bottom wall is closely contacted with or spaced from the door rail in accordance with confirmation of opening / closing of the signal checker, thereby performing shielding cancellation Semi-automatic shielding part; Wherein the check switch for checking the signal check unit is formed so that the door of the semi-automobile closing unit is associated with the opening / closing confirmation sensor when the door is closed to the door frame, And the lower shielding device is formed to be movable in accordance with the operation of the push switch for checking (opening / closing), and is formed with a transfer cylinder for lowering or elevating or lowering the lower shielding device And a floor shielding finger is formed at a lower portion of the support holder so as to be closely attached to or spaced from the upper surface of the door rail, An inside finger and an outside finger having a wave shape in cross section are formed at the rear, So that a magnetic field that can flow into spaces between the front and rear wall plates of the first and second plates can be cut off.

Accordingly, the shielding property of the lower shielding device for lower shielding between the lower door rail of the door frame and the bottom of the bottom surface of the shielding door is further improved. The lower shielding device is provided with a transfer cylinder, The support holder is coupled with a floor shielding finger for shielding the door with the support rail. The front and rear sides of the support holder are brought into close contact with the inner wall plate of the shielding door to allow a magnetic field, To combine the inside finger and the outside finger having a cross section in a wave form so as to be shielded by the outer finger.

However, the above-mentioned conventional door shields for the eye shields have an electronic driving structure using electric energy, which is unstable.

That is, there is a risk of failure, a short life span, and a high product unit price, which are uneconomical problems.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a method and apparatus for sealing a gap between a shielding door and a floor without forming a step formed at an entrance of an eye shield room, In particular, it is possible to smoothly shut off and release the power source without using a power source, thereby facilitating the opening of the shielding door, securing the reliability of operation, and stably using the power source. To provide a shielding door.

According to another aspect of the present invention, there is provided a shielding door for an eye shield, which shields a magnetic field generated in an M-use shielding room from leakage to the outside, For a shielded door; A door body hinged to the doorway and hinged to cover the magnetic field; And a shielding body having a conductive silicone rubber and a shielding coil disposed on the bottom surface thereof so as to open and close a space between the bottom surface of the door body and the entrance, And a blocking means for closing the door body when the door body is closed, the blocking body being received in the receiving portion on the bottom surface of the door body and closing the door when the door body is closed, the closing body being in close contact with the bottom surface of the doorway. The blocking means includes a fixed body fixed to the receiving portion of the door body and having a space portion opened at the lower portion thereof, a blocking body accommodated in the space portion of the fixed body so as to be able to move in and out, And a driving member which is reciprocated upward and downward by guiding the driving member; The driving member includes a rotary drum provided on a shaft of a handle that is axially coupled to a shaft that drives a locking means formed in the door body and a wire is fixed to a part of the outer circumferential surface of the rotary drum, The guide body being slidably coupled to the fixed body so as to move up and down the blocking body when the other end of the guide body is horizontally moved by the wire; and a slot having a predetermined inclination angle And a guide piece formed on a part of the cut-off body.

The guide piece is exposed through the guide hole formed in the fixture body and exposed to the upper portion of the fixture body, and the guide body is guided while passing through the guide tube provided on the upper surface of the fixture body .

And a return spring is provided between the guide body and the fixture so as to return the guide body to the original position.

A magnetic shielding sponge is embedded in the cut-off body, and a conductive adhesive is applied to the outer circumferential surface of the sponge to fix the cut-off body and the inner circumferential surface of the fixture.

A bushing member is provided between the blocking body and the fixing member to apply an elastic force to the fixing body and apply a pressing force to the fixing body so that the blocking body is pressed downward.

The shielding door for the eye shield of the present invention can prevent the generation of the space between the shielding door and the bottom surface through the shielding body without forming a step at the entrance of the eye shield room. It has an effect.

Also, at this time, it is possible to smoothly cut off and release the power without using the power source, so that the reliability of the operation can be ensured and the power can be stably used.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing a use state of a shielding door for an eye shield according to an embodiment of the present invention; FIG.
Figs. 2 to 5 are schematic enlarged views illustrating portions of a shielding door for an eye shield according to the present embodiment. Fig.
Fig. 6 to Fig. 9 are schematic enlarged examples of some excerpts showing the use state of the shielding door for an eye shield according to the present embodiment. Fig.

Hereinafter, a shielding door for an eye shield according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The embodiments of the present invention can be modified in various forms, and the scope of the present invention should not be construed as being limited to the embodiments described in detail below. This embodiment is provided to more fully describe the present invention to those skilled in the art. Therefore, the shapes and the like of the elements in the drawings can be exaggeratedly expressed to emphasize a clearer description. It should be noted that in the drawings, the same members are denoted by the same reference numerals. Detailed descriptions of well-known functions and constructions which may be unnecessarily obscured by the gist of the present invention are omitted.

1 to 9 are views showing a shielding door for an eye shield according to an embodiment of the present invention. The shielding door 1 for an eye shield according to the present embodiment is a shielding shield for an eye shield, The magnetic field generated is shielded so as not to leak to the outside, and at the same time, the entrance 2 is opened and closed.

That is, when the patient is diagnosed using the eye in the eyeglass room disposed in the medical institution, the shielding is applied to the shield room and the outside to shield the magnetic field so that the diagnosis work can be smoothly performed.

The door 1 according to the present embodiment includes a door main body 4 including a material shielded by a magnetic field by being hinged by the hinge 3 to the entrance 2, And the space between the bottom surface of the door main body 4 and the door 2 is opened or closed and the conductive silicone rubber (for example, 5 and the shielding coil 6 so that when the door body 4 is opened, the blocking body 7 is received in the receiving portion of the bottom surface of the door body 4, And closing means for closing and closing the doorway (2) when the doorway (2) is closed.

That is, when the shielding room is normally opened, the shielding body 7 is housed in the accommodating portion of the door main body 4 so as to open and close the door.

When the shielding room is normally closed, the blocking body 7 is exposed downward from the door body 4 to close the space between the door body 4 and the bottom surface of the doorway 2 Thereby realizing shielding against the magnetic field.

In the shielding door 1 according to the present embodiment as described above, the shielding means includes a fixing body 8 fixed to the receiving portion of the door body 4 and having a space portion opened at the lower portion thereof, A blocking body 7 which is housed in the space portion of the fixed body 8 so as to be capable of being retracted and retracted and a driving member for guiding the blocking body 7 inside the fixing body 8 to reciprocate upward and downward.

That is, the shielding body 7 is lifted up and down as needed on the fixed body 8 through the driving member to close or open the shield room.

In the shielding door 1 according to the present embodiment thus constructed, the driving member is provided on the shaft of the handle 10 axially coupled to the shaft for driving the locking means 9 formed on the door main body 4 A rotary drum 12 to which a wire 11 is fixed at one portion of an outer circumferential surface of the rotary drum 12 and the other end of the wire 11 to be wound or unwound by the rotary drum 12 are fixed, A guiding body 13 slidably coupled to the fixing body 8 so as to move up and down the blocking body 7 when the guiding body 13 is received by the guiding body 13, And a guide piece (16) formed on a part of the cut-off body (7).

That is, when the user rotates the handle 10 to lock or unlock the handle 10 through the locking means 9, the rotary drum 12 is rotated simultaneously to wind or unwind the wire 11.

When the wire 11 is loosened or wound, the guide body 13 horizontally moves on the fixing body 8 and the protrusion 14 of the guide body 13 is inserted into the slot 15, The guide piece 16 is moved up and down while the slanted long hole 15 is guided by the protrusion 14. [

The shielding body 7 is lifted and lowered so that the conductive silicone rubber 5 and the shielding coil 6 are attached to the bottom surface of the entrance 2 Or shielded, the shielding room is shielded and released.

The guide member 16 is exposed through the guide hole 17 formed in the fixing member 8 and exposed to the upper portion of the fixing member 8, It is preferable that the guide tube 18 is provided so as to be guided through the guide tube 18 provided on the upper surface of the guide tube 8.

In other words, it is most preferable that the guide body 13 is formed in a rod shape and reciprocates while passing through the inside of the guide tube 18 fixed to the fixture 8.

A return spring 19 is provided between the guide body 13 and the fixture 8 so as to return the guide body 13 to the original position.

Thus, by returning the guide body 13 to its original position, the guide body 13 can be stably returned to its original position when the wire 11 is unwound from the rotary drum 12. [

A shielding sponge 20 is embedded in the shielding body 7 and a conductive adhesive is applied to the outer surface of the sponge 20 so that the shielding body 7, And is fixed to the inner circumferential surface of the base plate 8.

An elastic force is applied between the blocking body 7 and the fixing body 8 to apply a pressing force to the fixing body 8 so that the blocking body 7 is pressed downward A bushing member 21 is provided.

Accordingly, when the guide body 13 is moved up and down, the cut-off body 7 is elastically raised and lowered in a corresponding manner.

Hereinafter, the operation and effect of the shield door for an eye shield of the present invention will be described in detail.

8 and 9, the shielding door 1 according to the present embodiment is configured such that the protrusion 14 of the guide body 13 is disposed at the lowermost portion of the slot 15 The wire 11 having its end fixed to one end of the guide body 13 is wound around the rotary drum 12 while pulling the guide body 13 to pull the guide body 13, (13) is moved on the fixing body (8).

At this time, the projection 14 is guided on the long hole 15 and is positioned at the uppermost portion of the long hole 15, so that the guide piece 16 is pressed down by the projection 14 , The blocking body (7) descends downward from the fixing body (8).

6 and 7, the blocking body 7 is moved toward the bottom of the doorway 2 so that the shielding coil 6 is brought into close contact with the doorway 2, thereby sealing the doorway 2. [ At the same time, the magnetic field is shielded.

When the door 2 is to be opened by opening the door main body 4 after the operation of the door is completed, if the door 10 is rotated in the reverse direction, the door is released from the locking means 9 The rotating drum 12 is rotated in the reverse direction so that the guide 11 is returned to its original position by the return spring 19 while the wire 11 is released, The protrusion 14 is located at the lowermost position on the elongated hole 15 so that the guide piece 13 is lifted so that the blocking body 7 is accommodated in the fixing body 8.

The blocking body 7 is received in the fixed body 8 and is released from the doorway 2 so that the doorway 2 is released from the closed state and the door body 4 is smoothly closed Open the doorway.

As described above, the shielding door for an eye shield according to the present embodiment is constructed such that the user can move the shielding body up and down by using a movement of the handle to shield or release the doorway. .

It will be apparent to those skilled in the art that various modifications and equivalent arrangements may be made therein without departing from the scope of the present invention as defined by the appended claims and their equivalents. . Therefore, it is to be understood that the present invention is not limited to the above-described embodiments. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims. It is also to be understood that the invention includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

1: Shielded door 2: Doorway
3: Hinge 4: Door body
5: conductive silicone rubber 6: shielding coil
7: blocking body 8: fixed body
9: Locking means 10: Handle
11: wire 12: rotary drum
13: guide body 14: projection
15: elongated hole 16: guide
17: guide ball 18: guide tube
19: return spring 20: sponge
21: Bushing member

Claims (5)

1. A shielding door for an eye shield for an eye shield which shields a magnetic field generated in an M-use shielding room from leakage to the outside and simultaneously opens and closes an entrance;
A door main body hinged to the doorway and hinged to be hermetically sealed to cover the magnetic field, and a receiving portion formed on a bottom surface of the door main body, and protruding and retracting toward and away from the door, And a shielding body provided with a conductive silicone rubber and a shielding coil on the bottom of the door body. When the door body is opened, the shielding body is housed in the receiving portion of the bottom surface of the door body, And closing means for closing and closing the bottom surface of the entrance when the door is closed;
The shut-
A blocking body fixed to the receiving portion of the door body and having a space portion opened at the lower portion thereof, a blocking body accommodated in the space portion of the fixing body so as to be able to move in and out, A driving member adapted to reciprocate;
Wherein the driving member comprises:
A rotary drum provided on a shaft of a handle axially coupled to a shaft for driving a locking means formed in the door body and having a wire fixed to a part of an outer circumferential surface thereof, and a second end of the wire wound or unwound by the rotary drum is fixed A guide body slidably coupled to the fixed body so as to move up and down the blocking body when horizontally moved by the wire, and a slot having a predetermined inclination angle in which the protrusion provided on the guide body is received, And a guide formed on a part of the body. The method of claim 1, further comprising:
The above-
And the guiding body is guided through the guiding tube provided on the upper surface of the fixing body, and is guided through the guiding hole formed in the fixing body, and is exposed to the upper portion of the fixing body. . The method of claim 1, further comprising:
Between the guide body and the fixture,
And a return spring for returning the guide body to an original position. The method of claim 1, further comprising:
Inside the blocking body,
Wherein a magnetic shielding sponge is embedded and a conductive adhesive is applied to the outer circumferential surface of the sponge so as to be fixed to the inner surface of the shielding body and the fixing body. The method of claim 1, further comprising:
Between the blocking body and the fixing body,
And a bushing member having an elastic force applied by an elastic spring to apply a pressing force to the blocking body so that the blocking body is pressed downward against the fixing body.

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