KR20190087790A - Medical chair - Google Patents

Abstract

Disclosed is a medical chair having an improved structure to be tilted. The medical chair of the present invention comprises: a sheet; a backrest coupled to the seat to be tilted; and a backrest compensation member provided to compensate for the weight applied to the backrest, and including a first end fixed to one of the seat and the backrest and a second end coupled to be movably connected to the other of the seat and the backrest.

Description

MEDICAL CHAIR {MEDICAL CHAIR}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a medical chair, and more particularly, to a medical chair having an improved structure capable of tilting.

Generally, a medical imaging apparatus is a device for acquiring information of a patient and providing an image. Medical imaging devices include X-ray devices, ultrasound diagnostic devices, computerized tomography devices, and magnetic resonance imaging devices.

Magnetic Resonance Imaging (MRI) is the imaging of the atomic nucleus density and physico-chemical properties by causing nuclear magnetic resonance phenomenon on the hydrogen nucleus in the body using a magnetic field free from harmless human body and RF which is non-ionizing radiation.

In recent years, a magnetic resonance imaging apparatus for capturing limbs such as knees, ankles, and wrists has been attracting attention.

The limb photographing of the patient using the MRI apparatus for limb photographing can be performed in a state where the patient is located in the chair. The chair should be able to be tilted at an appropriate angle so that the patient can take a comfortable posture.

Since magnetic resonance imaging is performed under magnetic field conditions, a chair whose tilting angle is adjusted by the driving force of the motor is not suitable for magnetic resonance imaging.

Therefore, in the past, the adjustment of the tilting angle of the chair was dependent on the manual adjustment of the user. In the course of adjusting the tilting angle of the chair, the user had to inconvenience the user to push or lift the chair. In addition, sometimes the user is injured in the process of adjusting the tilting angle of the chair.

One aspect of the present invention provides a medical chair having an improved structure for easily adjusting a tilting angle under magnetic field conditions.

A medical chair according to an aspect of the present invention includes a seat, a backrest coupled to the seat so that the seat can be tilted, and a backrest compensating member provided to compensate for the weight applied to the backrest, And a backrest compensating member comprising a first end and a second end movably coupled to the other of the seat and the backrest.

The medical chair according to an aspect of the present invention further includes a guide rail installed on any one of the seat and the backrest and the second end of the backrest compensating member is coupled to the guide rail so as to be movable along the guide rail .

The medical chair according to an aspect of the present invention may further include a movement restricting member provided to selectively restrict movement of the second end of the backrest compensating member.

The movement restricting member may be installed in any one of the seat and the backrest so as to selectively interfere with the second end of the backrest compensating member.

The medical chair according to an aspect of the present invention further includes a cushioning member located between the second end of the backrest compensating member and the movement restricting member when the second end of the backrest compensating member is interfered by the movement restricting member can do.

The buffer member may include a compression spring.

The medical chair according to an aspect of the present invention may further include an operating member provided to be capable of operating the movement restricting member, wherein the operating member includes an operating lever, and a cable connecting the operating lever and the movement limiting member .

The backrest compensating member may include a cylinder defining the first end and a piston rod defining the second end and coupled to the cylinder to be movable.

The backrest compensating member may include a gas spring.

The backrest compensating member may include at least one first compensating member that engages when the backrest is tilted at a small angle and at least one second compensating member that engages when the backrest is tilted at a large angle.

The distance between the first end and the second end of the at least one first compensating member may be greater than the distance between the first end and the second end of the at least one second compensating member.

A medical chair according to an aspect of the present invention includes a base frame disposed at a lower portion of the seat so as to face the seat and a seat compensating member provided to compensate a weight applied to the seat, And a second end movably coupled to the other of the seat and the base frame.

A medical chair according to an aspect of the present invention includes: a seat; a backrest coupled to the seat so as to be able to tilt; a damping member having both ends fixed to the seat and the backrest; and a plurality A backrest compensating member of a backrest comprising a plurality of backrest compensating members comprising a first end fixed to either the seat and the backrest and a second end movably coupled to the other of the seat and the backrest, have.

The medical chair according to an aspect of the present invention further includes a plurality of guide rails provided on any one of the seat and the backrest to correspond to each of the plurality of backrest compensating members, And the end portion may be coupled to the plurality of guide rails so as to be movable along the plurality of guide rails.

The plurality of back rest compensating members may include at least one first compensating member that engages when the backrest is tilted at a small angle and at least one second compensating member that engages when the backrest is tilted at a large angle .

Wherein the damping member comprises a first end fixed to either the seat and the back and a second end fixed to the other one of the seat and the back and the second end of the at least one first compensating member The second end of the damping member, or the second end of the damping member with respect to the engagement of the seat and the backrest.

Wherein the damping member comprises a first end fixed to either the seat and the back and a second end fixed to the other one of the seat and the back and the second end of the at least one second compensating member And may be located closer to the second end of the damping member with respect to the engagement of the seat and the back.

The medical chair according to an aspect of the present invention may further include a movement restricting member provided to selectively restrict movement of the second end of each of the plurality of back-compensating members.

A medical chair according to an aspect of the present invention is characterized in that the medical restraint member is disposed between the second end of each of the plurality of backrest compensating members and the movement restricting member when the second end of each of the plurality of backrest compensating members is interfered by the movement restricting member And a buffer member.

The medical chair according to the idea of the present invention may be provided so that the object is positioned at the time of magnetic resonance imaging.

It is possible to easily adjust the tilting angle of the medical chair without being affected by the magnetic field by applying at least one of the backrest compensating member and the seat compensating member which can be realized by the gas spring to the medical chair.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagram showing a use example of a medical chair according to a first embodiment of the present invention; FIG.
2 is a view showing a medical chair according to a first embodiment of the present invention;
3 is a view showing the backrest compensating member of the medical chair according to the first embodiment of the present invention
FIGS. 4A and 4B are diagrams showing an operation process of the medical chair according to the first embodiment of the present invention; FIGS.
5 is a view showing a medical chair according to a second embodiment of the present invention
6 is a view showing a backrest compensating member of a medical chair according to a second embodiment of the present invention
Figs. 7A and 7B are views showing the operation of the medical chair according to the second embodiment of the present invention
8A and 8B are diagrams showing an operation process of the medical chair according to the third embodiment of the present invention
9A and 9B are diagrams showing an operation process of the medical chair according to the fourth embodiment of the present invention

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The term "front end", "rear end", "upper", "lower", "upper" and "lower end" used in the following description are defined with reference to the drawings, And the position is not limited.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view showing the use of a medical chair according to a first embodiment of the present invention; Fig. Hereinafter, the object 40 may be a living body of a human being or an animal, but the present invention is not limited thereto. The object 40 may be the object 40 as long as its internal structure can be imaged by the MRI apparatus 1.

As shown in Fig. 1, the medical chair 10 can be used with the MRI apparatus 1. Specifically, the medical chair 10 can be used with a magnetic resonance imaging apparatus for capturing limbs of a subject 40. The object 40 can sit on the medical chair 10 or lie down and take a picture in a comfortable posture.

The medical chair 10 can be tilted so that the subject 40 can take a comfortable posture. When the medical chair 10 is used for magnetic resonance imaging, the medical chair 10 may be exposed to a magnetic field. Therefore, the tilting mechanism of the medical chair 10 must be realized in consideration of the "magnetic field ". A detailed description of the tilting mechanism of the medical chair 10 will be given later.

The medical chair 10 may include a seat assembly 20 in which the object 40 is located. The seat assembly 20 may include a seat 21 and a back rest 22 coupled to the seat 21. The backrest 22 can be coupled to the seat 21 so as to be tiltable. Specifically, the backrest 22 can be pivotably coupled to the seat 21. That is, the backrest 22 can be coupled to the seat 21 to be pivotable about a first rotational axis 24 (see FIG. 2).

The seat assembly 20 may further include an arm rest 23 disposed adjacent the seat 21 and the backrest 22. [ The armrest 23 may be provided so as to be tiltable.

The medical chair 10 may further include a base assembly 30 which is adapted to support the seat assembly 20. The base assembly 30 may include a base frame 31 disposed on the mounting surface of the medical chair 10. The base frame 31 may be disposed under the seat 21 to face the seat 21. The base assembly 30 may further include a seat 21 and a support frame 32 mounted to the base frame 31 to connect the seat 21 and the base frame 31. [ The seat 21 may be coupled to the base assembly 30 so as to be tiltable. In other words, the seat 21 can be coupled to the support frame 32 to be tiltable. Specifically, the seat 21 can be coupled to the support frame 32 so as to be pivotable about a second rotation axis 33 (see Fig. 2).

FIG. 2 is a view showing a medical chair according to a first embodiment of the present invention, and FIG. 3 is a view showing a backrest compensating member of a medical chair according to the first embodiment of the present invention. 3 shows a case where one first damping member 90, two first compensation members 51 and two second compensation members 52 are applied, the first damping member 90 ), The number and arrangement of the first compensating member 51 and the second compensating member 52 are not limited to the above-described example, but can be variously changed.

2 and 3, the medical chair 10 may include at least one backrest compensating member 50, which is provided to compensate for the weight applied to the back 22. As shown in Fig. The backrest compensating member 50 can be installed to connect the seat 21 and the backrest 22.

The at least one backrest compensating member 50 includes a first end fixed to either the seat 21 and the backrest 22 and a second end movably coupled to the other of the seat 21 and the back 22, Two ends. Specifically, at least one back-compensating member 50 may include a first end fixed to the seat 21 and a second end movably coupled to the back 22. Preferably, the at least one back-compensating member 50 may be provided in plural.

The at least one backrest compensating member 50 includes at least one first compensating member 51 that engages when the backrest 22 is tilted at a small angle and at least one first compensating member 51 that engages when the backrest 22 is tilted at a large angle And may include one second compensating member 52. At this time, the tilting angle of the backrest 22 is measured on the basis of the reference line R (see Fig. 4A) extending in the height direction H of the medical chair 10.

The distance d1 between the first end and the second end of the at least one first compensating member 51 is greater than the distance d2 between the first end and the second end of at least one second compensating member 52 It can be big. At this time, the distance between the first end and the second end is measured based on when the tilting angle of the back 22 is the smallest.

The second end of at least one first compensating member 51 is located above the second end of at least one second compensating member 52 in the height direction H of the medical chair 10 Can be located. That is, the second end of at least one first compensating member 51 is arranged to be movable above the second end of at least one second compensating member 52 in the height direction H of the medical chair 10 .

The first end of the at least one first compensating member 51 and the first end of at least one second compensating member 52 are positioned at the same position in the height direction H of the medical chair 10, ). However, the position of the first end of the at least one first compensating member 51 and the position of the first end of the at least one second compensating member 52 is not limited to the above-described example, and can be variously changed. The first end of the at least one first compensating member 51 and the first end of at least one second compensating member 52 are located at different positions in the height direction H of the medical chair 10 As shown in FIG.

At least one back-compensator member 50 may include a cylinder 53 and a piston rod 54 coupled to the cylinder 53 for movement. The cylinder 53 may define a first end of the at least one back-compensating member 50. That is, one end of the cylinder 53 can be fixed to the seat 21, and the other end of the cylinder 53 can engage with the piston rod 54. [ The piston rod 54 may define a second end of the at least one back-compensating member 50. Specifically, one end of the piston rod 54 may be movably coupled to the inside of the cylinder 53, and the other end of the piston rod 54 may be movably coupled to the backrest 22. More specifically, the other end of the piston rod 54 may be equipped with a moving block 55 which is coupled to the guide rail 60 and is movable along the guide rail 60. The other end of the piston rod 54 can be movably coupled to the back surface of the back 22, i.e., the guide rail 60, via the moving block 55.

The at least one back rest compensating member 50 may comprise a gas spring. However, the type of the at least one backrest compensating member 50 is not limited to the gas spring, and any one capable of damping can be adopted as at least one backrest compensating member 50.

The medical chair 10 may further include a guide rail 60 provided to face the second end of the at least one backrest compensating member 50. [ The second end of the at least one back-compensating member (50) can be coupled to the guide rail (60) so as to be movable along the guide rail (60). Preferably, the medical chair 10 may include at least one guide rail 60.

The guide rail 60 may be installed on either the seat 21 or the backrest 22. Specifically, the guide rail 60 may be installed on the back surface of the backrest 22 so as to extend in the height direction H of the medical chair 10.

The guide rail 60 includes a first guide rail 61 provided to correspond to the second end of the at least one first compensating member 51 and a second guide rail 61 provided at the second end of the at least one second compensating member 52 And a second guide rail 62 provided to correspond to the second guide rail. The first guide rail 61 may be installed on the back of the backrest 22 so as to be positioned above the second guide rail 62 in the height direction H of the medical chair 10. [

The medical chair 10 may further include a movement restricting member 70 provided to selectively limit movement of the second end of the at least one back-compensating member 50. [

The movement restricting member 70 may be installed on either the seat 21 or the backrest 22 so as to selectively interfere with the second end of the at least one back-compensating member 50. Specifically, the movement restricting member 70 can be installed in the backrest 22 so as to selectively interfere with the moving block 55 of the at least one back-compensating member 50.

The movement restricting member 70 can be realized in the form of a lever capable of rotating about the rotation axis 71. [

If the second end of the at least one back-compensating member 50, that is, the moving block 55 is interfered by the movement restricting member 70, then the moving block 55 of the at least one back- And can not move along the guide rail 60. Thus, the backrest 22 of the medical chair 10 is kept in a tilted state. On the other hand, when the interference by the movement restricting member 70 with respect to the second end of the at least one back-compensating member 50, that is, the moving block 55 is released, 55 can freely move along the guide rail 60. This makes it possible to tilt the backrest 22 of the medical chair 10 at an angle suitable for photographing.

The movement restricting member 70 may be provided in a number corresponding to the number of the at least one back-compensating member 50.

The medical chair 10 may further include an operating member 80 provided so as to be capable of operating the movement restricting member 70. [

The operating member 80 may include an operating lever 81 and a cable 82 connecting the operating lever 81 and the movement restricting member 70. As one example, the operating lever 81 may be installed at the upper end of the back 22 so as to be easy for the user to operate. The operation lever 81 can be installed to be tiltable around the lever shaft 81a. Specifically, the operation lever 81 can be installed to be tiltable in the front-rear direction X of the medical chair 10 about the lever shaft 81a. When the operation lever 81 is pushed toward the rear side of the medical chair 10, the movement restricting member 70 connected to the operation lever 81 by the cable 82 rotates around the rotation axis 71, And interfere with the moving block 55 of the back-compensating member 50. Accordingly, the movement of the second end of the at least one back-compensating member 50 is restricted, and the backrest 22 of the medical chair 10 is kept in a tilted state. When the operation lever 81 is pressed toward the front side of the medical chair 10, the movement restricting member 70 connected to the operation lever 81 by the cable 82 is rotated about the rotation axis 71, The interference of the movement restricting member 70 with respect to the moving block 55 of the at least one back-compensating member 50 is released. The backrest 22 of the medical chair 10 can be freely tilted at an angle suitable for photographing.

The medical chair 10 may further include at least one first damping member 90. At least one first damping member 90 may have both ends fixed to seat 21 and back 22, respectively. At least one first damping member 90 comprises a first end fixed to either the seat 21 or the backrest 22 and a second end fixed to the other of the seat 21 and the back 22, Two ends. Specifically, at least one first damping member 90 may include a first end fixed to the seat 21 and a second end fixed to the back 22.

The second end of the at least one first compensating member 51 is identical or at least one of the second end of the at least one first damping member 90 with respect to the engagement of the seat 21 and the back 22, Of the first damping member (90) of the first damping member (90). At this time, the engagement portion of the seat 21 and the backrest 22 may refer to the first rotation shaft 24. The second end of the at least one first compensating member 51 is positioned at the same position as the second end of the at least one first damping member 90 in the height direction H of the medical chair 10 Or may be located above the second end of the at least one first damping member 90. [

The second end of the at least one second compensating member 52 is positioned closer to the second end of the at least one first damping member 90 relative to the engagement of the seat 21 and the back 22 . At this time, the engagement portion of the seat 21 and the backrest 22 may refer to the first rotation shaft 24. The second end of the at least one second compensating member 52 is positioned below the second end of at least one first damping member 90 in the height direction H of the medical chair 10, Lt; / RTI >

The first end of the at least one first damping member 90 and the first end of the at least one back-compensating member 50 are positioned in the same position in the height direction H of the medical chair 10, As shown in FIG. However, the position of the first end of the at least one first damping member 90 and the position of the first end of the at least one back-compensating member 50 are not limited to the above-described example, and may be variously changed.

At least one first damping member 90 may include a cylinder 91 and a piston rod 92 coupled to the cylinder 91 for movement. The cylinder 91 may define a first end of the at least one first damping member 90. That is, one end of the cylinder 91 can be fixed to the seat 21, and the other end of the cylinder 91 can engage with the piston rod 92. [ The piston rod 92 may define a second end of the at least one first damping member 90. Specifically, one end of the piston rod 92 can be movably coupled to the inside of the cylinder 91, and the other end of the piston rod 92 can be fixed to the backrest 22.

The at least one first damping member 90 may comprise a gas spring. However, at least one first damping member 90 is not limited to a gas spring, and any of the damping members 90 may be adopted as at least one first damping member 90.

The medical chair 10 may further include at least one second damping member 100 installed to connect the seat 21 and the base assembly 30. Specifically, at least one second damping member 100 may be installed to connect the seat 21 and the base frame 31. The at least one second damping member 100 includes a first end fixed to either the seat 21 and the base frame 31 and a second end fixed to the other of the seat 21 and the base frame 31. [ End portion. The description of the other at least one second damping member 100 is omitted since it is the same as that of the at least one first damping member 90.

4A and 4B are diagrams showing the operation of the medical chair according to the first embodiment of the present invention.

4A, the subject 40 is placed on the medical chair 10, and then the backrest 22 of the medical chair 10 is tilted to a position suitable for magnetic resonance imaging. At this time, since the weight applied to the backrest 22 of the medical chair 10 is compensated by the backrest compensating member 50, the user is able to adjust the backrest 22 of the medical chair 10 regardless of the weight of the object 40 It can be easily tilted to a desired position.

4B, when the backrest 22 of the medical chair 10 is tilted to a desired position, the user presses the operation lever 81 to the rear side of the medical chair 10 to operate the movement restricting member 70 . The movement of the second end of the at least one back-compensating member 50 is limited as the movement restricting member 70 interferes with the second end of the at least one back-compensating member 50, And the backrest 22 of the backrest is kept in a tilted state.

FIG. 5 is a view showing a medical chair according to a second embodiment of the present invention, and FIG. 6 is a view showing a backrest compensating member of a medical chair according to a second embodiment of the present invention. Hereinafter, the description of the medical chair 10 according to the first embodiment will be omitted.

As shown in Figs. 5 and 6, the medical chair 10a may include at least one backrest compensating member 50a provided to compensate for the weight applied to the back 22. At least one back-compensating member 50a may be installed to connect the seat 21 and the backrest 22.

The at least one back rest compensating member 50a may include a first end fixed to the backrest 22 and a second end movably coupled to the seat 21. Preferably, the at least one back-compensating member 50a may be provided in plural.

The at least one backrest compensating member 50a includes at least one first compensating member 51 that engages when the backrest 22 is tilted at a small angle and at least one first compensating member 51 that engages when the backrest 22 is tilted at a large angle, And may include one second compensating member 52. At this time, the tilting angle of the backrest 22 is measured based on a reference line R (see Fig. 7A) extending in the height direction H of the medical chair 10a.

The distance d1 between the first end and the second end of the at least one first compensating member 51 is greater than the distance d2 between the first end and the second end of at least one second compensating member 52 It can be big. At this time, the distance between the first end and the second end is measured based on when the tilting angle of the back 22 is the smallest.

The second end of the at least one first compensating member 51 is located rearward of the second end of the at least one second compensating member 52 in the forward and backward directions X of the medical chair 10a Can be located. That is, the second end of at least one first compensating member 51 is arranged to be movable rearward from the second end of at least one second compensating member 52 in the forward and backward directions X of the medical chair 10a .

The first end of the at least one first compensating member 51 and the first end of the at least one second compensating member 52 are positioned at the same position in the height direction H of the medical chair 10a ). However, the position of the first end of the at least one first compensating member 51 and the position of the first end of the at least one second compensating member 52 is not limited to the above-described example, and can be variously changed.

At least one back-compensator member 50a may include a cylinder 53 and a piston rod 54 coupled to the cylinder 53 for movement. The cylinder 53 may define a first end of the at least one back-compensating member 50a. That is, one end of the cylinder 53 can be fixed to the backrest 22, and the other end of the cylinder 53 can engage with the piston rod 54. [ The piston rod 54 may define a second end of the at least one back-compensating member 50a. Specifically, one end of the piston rod 54 is movably coupled to the inside of the cylinder 53, and the other end of the piston rod 54 is movably coupled to the seat 21. More specifically, at the other end of the piston rod 54, a moving block 55 which is coupled to the guide rail 60a and can move along the guide rail 60a can be mounted. The other end of the piston rod 54 can be movably coupled to the upper surface of the seat 21, that is, the guide rail 60a via the moving block 55. [

The medical chair 10a may further include a guide rail 60a provided to face the second end of the at least one back-compensating member 50a. The guide rails 60a may be provided on the upper surface of the seat 21 so as to extend in the longitudinal direction X of the medical chair 10a.

The guide rail 60a includes a first guide rail 61 provided to correspond to the second end of the at least one first compensating member 51 and a second guide rail 61 provided at the second end of the at least one second compensating member 52 And a second guide rail 62 provided to correspond to the second guide rail. The first guide rail 61 may be provided on the upper surface of the seat 21 so as to be positioned behind the second guide rail 62 in the front and rear direction X of the medical chair 10a.

The medical chair 10a may further include a movement restricting member 70 provided to selectively restrict movement of the second end of the at least one back restoring member 50a. The movement restricting member 70 may be installed on the seat 21 so as to selectively interfere with the second end of the at least one back-compensating member 50a.

The medical chair 10a may further include an operating member 80 provided to be capable of operating the movement restricting member 70. [

The operating member 80 may include an operating lever 81 and a cable 82 connecting the operating lever 81 and the movement restricting member 70. As one example, the operation lever 81 may be installed at the rear end of the seat 21 so as to be easily operated by the user. The operation lever 81 can be installed to be tiltable around the lever shaft 81a. Specifically, the operation lever 81 can be installed to be tiltable in the height direction H of the medical chair 10a about the lever shaft 81a.

The medical chair 10a may further include at least one first damping member 90. [

The second end of the at least one first compensating member 51 is identical or at least one of the second end of the at least one first damping member 90 with respect to the engagement of the seat 21 and the back 22, Of the first damping member (90) of the first damping member (90). At this time, the engagement portion of the seat 21 and the backrest 22 may refer to the first rotation shaft 24. The second end of the at least one first compensating member 51 is positioned in the same direction as the second end of the at least one first damping member 90 in the forward and backward directions X of the medical chair 10a Or may be located behind the second end of at least one first damping member (90).

The second end of the at least one second compensating member 52 is positioned closer to the second end of the at least one first damping member 90 relative to the engagement of the seat 21 and the back 22 . At this time, the engagement portion of the seat 21 and the backrest 22 may refer to the first rotation shaft 24. The second end of the at least one second compensating member 52 is positioned in the forward and backward directions X of the medical chair 10a forward of the second end of the at least one first damping member 90, Lt; / RTI >

The first end of the at least one first damping member 90 and the first end of the at least one backrest compensating member 50a are positioned at the same position in the height direction H of the medical chair 10a, As shown in FIG. However, the position of the first end of the at least one first damping member 90 and the position of the first end of the at least one back-compensating member 50a are not limited to the above-described example, and can be variously changed.

FIGS. 7A and 7B are views showing the operation of the medical chair according to the second embodiment of the present invention.

The subject 40 is placed on the medical chair 10a and then the backrest 22 of the medical chair 10a is tilted to a position suitable for magnetic resonance imaging as shown in Fig. At this time, since the weight applied to the backrest 22 of the medical chair 10a is compensated by the backrest compensating member 50a, the user can feel the backrest 22 of the medical chair 10a regardless of the weight of the object 40 It can be easily tilted to a desired position.

7B, when the backrest 22 of the medical chair 10a is tilted to a desired position, the user presses the operation lever 81 downward of the medical chair 10a to operate the movement restricting member 70 . The movement of the second end of the at least one back-compensating member 50a is limited as the movement restricting member 70 interferes with the second end of the at least one back-compensating member 50a, And the backrest 22 of the backrest is kept in a tilted state.

8A and 8B are diagrams illustrating an operation process of a medical chair according to a third embodiment of the present invention. Hereinafter, the description of the medical chair 10 according to the first embodiment will be omitted.

As shown in Figs. 8A and 8B, the medical chair 10b may include the seat compensating member 200 as well as the backrest compensating member 50. As shown in Figs. The sheet compensating member 200 may be provided to compensate for the weight applied to the sheet 21. [ The seat compensating member 200 can be installed to connect the seat 21 and the base frame 31. [ The medical chair 10b may include at least one seat compensating member 200. [

The at least one seat compensating member 200 includes a first end fixed to either the seat 21 and the base frame 31 and a second end fixed to one of the seat 21 and the base frame 31 movably As shown in FIG. As one example, the at least one sheet compensating member 200 may include a first end fixed to the base frame 31 and a second end movably coupled to the seat 21. Preferably, the at least one sheet-compensating member 200 may be provided in plurality.

The at least one seat compensating member 200 includes at least one first compensating member (not shown) that engages when the seat 21 is tilted at a small angle and a second compensating member And may include at least one second compensating member (not shown). At this time, the tilting angle of the seat 21 is measured with reference to the reference line R 'extending in the front-back direction X of the medical chair 10b.

The second end of the at least one first compensating member may be located rearward of the second end of the at least one second compensating member in the forward and backward directions X of the medical chair 10b. That is, the second end of the at least one first compensating member may be provided so as to be movable rearward relative to the second end of the at least one second compensating member in the longitudinal direction X of the medical chair 10b.

The first end of at least one first compensating member and the first end of at least one second compensating member may be fixed to the base frame 31 so as to be located at the same position in the longitudinal direction X of the medical chair 10b have. However, the position of the first end of the at least one first compensating member and the position of the first end of the at least one second compensating member is not limited to the above-described example, and can be variously changed.

The description of at least one seat compensating member 200 is the same as that of the at least one backrest compensating member 50 of the medical chair 10 according to the first embodiment.

The medical chair 10b may further include a guide rail 300 provided to face the second end of the at least one seat compensating member 200. [ The second end of at least one seat compensating member 200 may be coupled to the guide rail 300 to be movable along the guide rail 300.

The guide rail 300 may be installed in any one of the seat 21 and the base frame 31. As an example, the guide rails 300 may be installed on the lower surface of the seat 21 so as to extend in the front-rear direction X of the medical chair 10b.

The guide rail 300 includes a first guide rail (not shown) provided so as to correspond to a second end of at least one first compensating member, a second guide rail (not shown) provided corresponding to the second end of the at least one second compensating member 2 guide rails (not shown). The first guide rail may be provided on the lower surface of the seat 21 so as to be positioned behind the second guide rail in the front-rear direction X of the medical chair 10b.

The medical chair 10b may further include a movement restricting member 400 provided to selectively restrict movement of the second end of the at least one seat compensating member 200. [

The movement restricting member 400 may be installed in either the seat 21 or the base frame 31 so as to selectively interfere with the second end of the at least one seat compensating member 200. [ In one example, the movement restricting member 400 may be installed in the seat 21 so as to selectively interfere with the moving block 250 of the at least one sheet-compensating member 200. [

The movement restricting member 400 may be realized in a lever shape.

The movement restricting member 400 may be provided in a number corresponding to the number of the at least one sheet-

The medical chair 10b may further include an operating member 600 provided to be capable of operating the movement restricting member 400. [

The operation member 600 may include an operation lever 610 and a cable 620 connecting the operation lever 610 and the movement restricting member 400. The operation lever 610 can be installed to be tiltable around the lever shaft 611.

The medical chair 10b may further include at least one second damping member 100 installed to connect the seat 21 and the base assembly 30. [ The description of the at least one second damping member 100 is the same as that of the at least one second damping member 100 of the medical chair 10 according to the first embodiment.

8A, after the object 40 is placed on the medical chair 10b, the backrest 22 of the medical chair 10b and the seat 21 of the medical chair 10b are placed in a magnetic resonance imaging Tilt to the appropriate position. At this time, the weight applied to the backrest 22 of the medical chair 10b is compensated by the backrest compensating member 50, and the weight applied to the seat 21 of the medical chair 10b is compensated by the weight of the seat compensating member 200, The user can easily tilt the backrest 22 and the seat 21 of the medical chair 10b to a desired position regardless of the weight of the object 40. [

8B, when the backrest 22 of the medical chair 10b is tilted to a desired position, the user presses the operation lever 81 to the rear side of the medical chair 10b to operate the movement restricting member 70 . The movement of the second end of the at least one back-compensating member 50 is limited as the movement restricting member 70 interferes with the second end of the at least one back-compensating member 50, And the backrest 22 of the backrest is kept in a tilted state. When the seat 21 of the medical chair 10b is tilted to a desired position, the user presses the operation lever 610 to operate the movement restricting member 400. [ The movement of the second end of the at least one sheet-compensating member 200 is limited as the movement restricting member 400 interferes with the second end of the at least one sheet-compensating member 200, The sheet 21 is held in a tilted state.

9A and 9B are diagrams showing an operation process of the medical chair according to the fourth embodiment of the present invention. The cushioning member 500 to be described later is applicable to the medical chair 10 according to the first embodiment, the medical chair 10a according to the second embodiment, and the medical chair 10b according to the third embodiment.

As shown in Figs. 9A and 9B, the medical chair 10c may further include a buffer member 500. Fig. The cushioning member 500 serves to alleviate an impact that may occur when the movement of the second end of the backrest compensating member 50 is restricted by the movement restricting member 70.

The cushioning member 500 is positioned so as to be positioned between the second end of the backrest compensating member 50 and the movement restricting member 70 when the second end of the backrest compensating member 50 is interfered by the movement restricting member 70 . In other words, the cushioning member 500 is positioned between the second end of the backrest compensating member 50 and the movement restricting member 70 when the second end of the backrest compensating member 50 is interfered by the movement restricting member 70 At least one of the second end of the back-compensating member 50 and the movement restricting member 70 may be provided so as to be located at the rear end of the backrest.

The buffer member 500 may include a compression spring. However, the type of the cushioning member 500 is not limited to the compression spring, and any type of cushioning member 500 can be used as long as the cushioning action can be achieved.

Although the cushioning member 500 is applied to the backrest compensating member 50 as described above, the cushioning member 500 is applicable not only to the backrest compensating member 50 but also to the seat compensating member 200. [

In the above description, the case where the backrest compensating member and the seat compensating member are respectively operated by separate operating members has been described, but it is also possible that the backrest compensating member and the seat compensating member are operated by one operating member. Also, the backrest and the seat may be separately tilted or interlocked and tilted.

In the above description, the medical chairs 10, 10a, 10b, and 10c are used for magnetic resonance imaging. However, the medical chairs 10, 10a, 10b, and 10c can be used in various fields, and their fields of use are not limited to magnetic resonance imaging.

The foregoing has shown and described specific embodiments. However, it should be understood that the present invention is not limited to the above-described embodiment, and various changes and modifications may be made without departing from the technical idea of the present invention described in the following claims .

1: magnetic resonance imaging apparatus 10, 10a, 10b, 10c: medical chair
20: seat assembly 21: seat
22: backrest 23: arm rest
24: first rotating shaft 30: base assembly
31: base frame 32: support frame
33: second rotating shaft 40: object
50, 50a: backrest compensating member 51: first compensating member
52: second compensating member 53: cylinder
54: piston rod 55: moving block
60, 60a: a guide rail 61: a first guide rail
62: second guide rail 70: movement limiting member
71: rotating shaft 80: operating member
81: Operation lever 81a: Lever axis
82: cable 90: first damping member
91: cylinder 92: piston rod
100: second damping member 200: sheet-compensating member
250: moving block 300: guide rail
400: movement restricting member 500: buffer member
600: operating member 610: operating lever
611: Lever shaft 620: Cable

Claims (20)

Sheet;
A backrest coupled to the seat for tilting; And
A backrest compensating member provided to compensate for the weight applied to the backrest, the backrest compensating member comprising a first end fixed to either the seat or the backrest and a second end movably coupled to the other of the seat and the backrest And a backrest compensating member for supporting the backrest. The method according to claim 1,
Further comprising a guide rail installed on any one of the seat and the backrest,
And a second end of the backrest compensating member is coupled to the guide rail to be movable along the guide rail. The method according to claim 1,
Further comprising a movement restricting member provided to selectively restrict movement of the second end of the backrest compensating member. The method of claim 3,
Wherein the movement restricting member is installed on any one of the seat and the backrest so as to selectively interfere with the second end of the backrest compensating member. The method of claim 3,
And a cushioning member located between the second end of the backrest compensating member and the movement restricting member when the second end of the backrest compensating member is interfered by the movement restricting member. 6. The method of claim 5,
Wherein the cushioning member comprises a compression spring. The method of claim 3,
Further comprising an operation member provided so as to be capable of operating the movement restricting member,
Wherein:
joystick; And
And a cable connecting the operation lever and the movement restricting member. The method according to claim 1,
Wherein the backrest compensating member comprises:
A cylinder defining the first end; And
And a piston rod defining the second end and coupled to the cylinder to be movable. The method according to claim 1,
Wherein the backrest compensating member comprises a gas spring. The method according to claim 1,
Wherein the backrest compensating member comprises:
At least one first compensating member engaged when the backrest is tilted at a small angle; And
And at least one second compensating member engaged when the backrest is tilted at a large angle. 11. The method of claim 10,
Wherein the distance between the first end and the second end of the at least one first compensating member is greater than the distance between the first end and the second end of the at least one second compensating member. The method according to claim 1,
A base frame disposed at a lower portion of the seat to face the seat; And
And a second end movably coupled to the other of the seat and the base frame, and a second end fixed to one of the seat and the base frame, And a sheet-rewarding member including the sheet-like member. Sheet;
A backrest coupled to the seat for tilting;
A damping member having both ends fixed to the seat and the backrest, respectively; And
A plurality of backrest compensating members adapted to compensate for the weight applied to the backrest, the backrest compensating member comprising a first end fixed to either the seat or the backrest and a second end movably coupled to the other of the seat and the backrest, And a plurality of backrest compensating members including the backrest compensating members. 14. The method of claim 13,
Further comprising a plurality of guide rails provided on any one of the seat and the backrest corresponding to each of the plurality of back-compensating members,
And a second end of each of the plurality of back-compensating members is coupled to the plurality of guide rails so as to be movable along the plurality of guide rails. 14. The method of claim 13,
Wherein the plurality of back-
At least one first compensating member engaged when the backrest is tilted at a small angle; And
And at least one second compensating member engaged when the backrest is tilted at a large angle. 16. The method of claim 15,
The damping member comprising a first end fixed to either the seat and the backrest and a second end fixed to the other of the seat and the back,
Wherein the second end of the at least one first compensating member is located farther from the second end of the damping member than the second end of the damping member relative to the engagement of the seat and the back. 16. The method of claim 15,
The damping member comprising a first end fixed to either the seat and the backrest and a second end fixed to the other of the seat and the back,
Wherein the second end of the at least one second compensating member is located closer to the second end of the damping member with respect to the mating portion of the seat and the back. 14. The method of claim 13,
Further comprising a movement restricting member provided so as to selectively restrict movement of the second end of each of the plurality of back-compensating members. 19. The method of claim 18,
Further comprising a cushioning member located between the second end of each of the plurality of back-compensating members and the movement restricting member when the second end of each of the plurality of back-compensating members is interfered by the movement restricting member. 14. The method of claim 13,
Wherein the medical chair is provided so that the object is located during magnetic resonance imaging.

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