WO2019172502A1

WO2019172502A1 - Medical chair

Info

Publication number: WO2019172502A1
Application number: PCT/KR2018/013582
Authority: WO
Inventors: 비크람키르티 쿠마 데이브
Original assignee: 삼성전자주식회사
Priority date: 2018-03-06
Filing date: 2018-11-09
Publication date: 2019-09-12
Also published as: KR20190105801A

Abstract

Disclosed is a medical chair having an improved structure to be capable of tilting. The medical chair may comprise: a base frame disposed in a first space where a magnetic field extends; a seat assembly disposed on the base frame and including a seat and a backrest coupled to the seat; a backrest cable provided to be involved in the tilting of the backrest; and a backrest actuator disposed in a second space located on the outside of the first space so as to operate the backrest cable.

Description

Medical chair

The present invention relates to a medical chair, and more particularly to a medical chair having an improved structure to be tiltable (tilting).

In general, a medical imaging apparatus is an apparatus that provides an image by acquiring patient information. Medical imaging apparatuses include X-ray apparatus, ultrasound diagnostic apparatus, computed tomography apparatus, magnetic resonance imaging apparatus, and the like.

Magnetic Resonance Imaging (MRI) is an image of the density and physicochemical characteristics of nuclear nuclei by using nuclear magnetic field and non-electromagnetic radiation, RF, which is harmless to the human body, causing nuclear magnetic resonance.

Recently, magnetic resonance imaging apparatuses for photographing limbs capable of photographing limbs such as knees, ankles, wrists, etc. have been attracting attention.

Limb imaging of a patient using a magnetic resonance imaging device for limb imaging may be performed while the patient is located in a chair. The chair should be able to tilt at an appropriate angle so that the patient can take the picture in a comfortable position.

Adjusting the tilting angle of the chair often depends on the manual adjustment of the user due to the influence of the magnetic field. In the process of adjusting the tilting angle of the chair, the user must bear the inconvenience of pushing or lifting the chair. In addition, the user is often 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 to easily adjust the tilt angle under magnetic field conditions.

Medical chair according to the spirit of the present invention can be used when magnetic resonance imaging. According to an aspect of the present invention, a medical chair includes a base frame disposed in a first space exerted by a magnetic field, a seat assembly including a seat and a backrest disposed on the base frame and coupled to the seat, and involved in tilting the backrest. And a backrest actuator disposed in a second space located outside the first space to drive the backrest cable and the backrest cable.

Medical chair according to the spirit of the present invention, connecting the seat and the backrest, the backrest adjustment member and the backrest adjustment member provided to engage in the tilting of the backrest together with the backrest cable and the first lever shaft to be rotatable about the shaft It may further include a first locking lever coupled to.

Tilting of the backrest may be limited if the first locking lever interferes with the backrest.

The medical chair according to the spirit of the present invention may further include a first lever actuator provided to drive the first locking lever, and a first lever cable provided to connect the first locking lever and the first lever actuator. Can be.

The medical chair according to the spirit of the present invention may further include a seat cable provided to participate in the tilting of the seat and a seat actuator disposed in the second space to drive the seat cable.

The first space may include an installation surface on which the base frame is disposed, and a portion of each of the seat cable and the backrest cable may be embedded in the installation surface of the first space.

Medical seat according to the spirit of the present invention, the seat and the base frame, the seat adjustment member and the second lever shaft is provided so as to be involved in the tilting of the seat together with the seat cable and the seat adjustment It may further include a second locking lever coupled to the member.

Tilting of the seat may be limited if the second locking lever interferes with the seat.

The medical chair according to the spirit of the present invention may further include a second lever actuator provided to drive the second locking lever and a second lever cable provided to connect the second locking lever and the second lever actuator. Can be.

The medical chair according to the inventive concept may further include a plurality of guide pulleys disposed between the seat and the base frame to guide the seat cable and the backrest cable.

The seat cable may be provided to receive driving force directly from the seat actuator, and the backrest cable may be provided to receive driving force directly from the backrest actuator.

The medical chair according to the spirit of the present invention is provided so that each of the gear box and the seat cable and the backrest cable connected to each of the seat actuator and the backrest actuator is wound, and transmits a driving force from each of the seat actuator and the backrest actuator. It may further include a pulley coupled to the gear box to be rotatable.

Medical chair according to the spirit of the present invention can be used when magnetic resonance imaging. According to an aspect of the present invention, a medical chair includes: a base frame including a first region exerted by a magnetic field and a second region located outside the first region, disposed on a first region of the base frame, and a seat and the A seat assembly comprising a backrest coupled to a seat, a seat cable provided to engage in tilting of the seat, a backrest cable provided to engage in tilting of the backrest, and a plurality of actuators disposed in a second region of the base frame, It may include a plurality of actuators including a seat actuator provided to drive the seat cable and a back actuator provided to drive the backrest cable.

Each of the seat cable and the back cable may include a Bowden cable.

According to an aspect of the present invention, a medical chair includes a seat gear box coupled to the seat actuator and a plurality of gear boxes including a back gear box coupled to the back actuator, and the seat cable wound around the seat actuator. A seat pulley coupled to the seat gear box to be rotatable by receiving a driving force from the seat; and a back support pulley coupled to the backrest gear box to be rotatable by receiving a driving force from the backrest actuator. A plurality of pulleys may be further included.

According to an aspect of the present invention, a medical chair connects the seat and the base frame, connects the seat adjusting member and the seat and the backrest together with the seat cable to participate in the tilting of the seat, and the backrest cable And it may further include a backrest adjustment member provided to participate in the tilting of the backrest.

Each of the seat adjusting member and the backrest adjusting member may include a gas spring.

Medical chair according to the spirit of the present invention, the first locking lever is provided rotatably around the first lever shaft to limit the tilting of the backrest and provided to be rotatable about the second lever shaft to limit the tilting of the seat. The second locking lever may be further included.

The medical chair according to the spirit of the present invention may further include a lever actuator provided to drive each of the first locking lever and the second locking lever.

The seat actuator is placed out of the magnetic field to drive the seat cable, and the back actuator is placed out of the magnetic field to drive the backrest cable, making it easy to tilt the medical chair with or without a magnetic field. Can be adjusted.

1 is an illustration of the use of the medical chair according to the first embodiment of the present invention

2 and 3 is a view showing the operation of the medical chair according to the first embodiment of the present invention

4 is a view illustrating a connection relationship between a plurality of cables and a plurality of actuators in the medical chair according to the first embodiment of the present invention.

5 is a view showing a medical chair according to a second embodiment of the present invention;

6 is a view showing a medical chair according to a third embodiment of the present invention;

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail. On the other hand, the terms "leading", "back", "top", "bottom", "top" and "bottom" used in the following description are defined based on the drawings, and the shape of each component by this term And position is not limited.

1 is an illustration of the use of the medical chair according to the first embodiment of the present invention. Hereinafter, the object 40 may be a living body of a human or an animal, but is not limited thereto. The object 40 may be the object 40 if the internal structure can be imaged by the magnetic resonance imaging apparatus 1.

As shown in FIG. 1, the medical chair 10 may be used together with the magnetic resonance imaging apparatus 1. In detail, the medical chair 10 may be used together with a magnetic resonance imaging apparatus for photographing a limb of the object 40. The object 40 may sit on or lie in the medical chair 10 and take a photograph in a comfortable posture.

The medical chair 10 may be provided to be tiltable so that the object 40 may take a photograph in 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 should be implemented in consideration of the element "magnetic field". Detailed description of the tilting mechanism of the medical chair 10 will be described 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 may be coupled to the seat 21 to be tiltable. Specifically, the backrest 22 may be coupled to the seat 21 to be pivotable. That is, the backrest 22 may be coupled to the seat 21 so as to be pivotable about the first rotational shaft 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 arm rest 23 may be provided to be tiltable.

The medical chair 10 may further include a base assembly 30 provided to support the seat assembly 20. The base assembly 30 may include a base frame 31 disposed on the installation surface. The base frame 31 may be disposed to be movable on the installation surface. Specifically, a plurality of casters 35 (see FIG. 2) may be installed in the base frame 31 so that the base frame 31 is movable along the installation surface. The base frame 31 may be disposed under the sheet 21 to face the sheet 21.

The base assembly 30 may further include a support frame 32 mounted to the seat 21 and 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 to be tiltable. In other words, the seat 21 may be coupled to the support frame 32 to be tiltable. Specifically, the seat 21 may be coupled to the support frame 32 so as to be pivotable about the second rotating shaft 25 (see FIG. 2).

2 and 3 are views showing the operation of the medical chair according to the first embodiment of the present invention, Figure 4 is a medical chair according to the first embodiment of the present invention, a plurality of cables and a plurality of actuators A diagram showing a connection relationship.

As illustrated in FIGS. 2 to 4, the backrest 22 may be coupled to the seat 21 to be rotatable about the first rotational shaft 24. In detail, the backrest 22 may be coupled to the seat 21 so as to be tiltable in the front and rear directions X of the medical chair 10 about the first rotational shaft 24.

The seat 21 may include a backrest coupling portion 21a provided to allow the backrest 22 to be coupled thereto. The backrest coupling portion 21a may be recessed on one side of the seat 21 so that a part of the backrest 22 is inserted and coupled thereto. The backrest coupling portion 21a may have a width of a predetermined length in the front-back direction X of the medical chair 10 so as not to prevent rotation or tilting of the backrest 22. When defining the width of the backrest coupling portion 21a measured with reference to the front-back direction X of the medical chair 10 as “w”, the width w of the backrest coupling portion 21a is defined by the backrest 22. It may be equal to the width of the tilting interval. That is, the backrest 22 can be tilted in the front-back direction X of the medical chair 10 about the first rotational shaft 24 by the width w of the backrest coupling portion 21a. In other words, the backrest 22 moves in the front-rear direction X of the medical chair 10 about the first rotating shaft 24 until it contacts the inner wall of the seat 21 defining the backrest engaging portion 21a. Tilting is possible. However, the width w of the backrest coupling portion 21a may be larger than the width of the tilting section of the backrest 22. At this time, the tilting of the backrest 22 is not limited by the backrest 22 coming into contact with the inner wall of the seat 21 defining the backrest engaging portion 21a, but the first locking lever 510 is supported by the backrest 22. It may be limited by interfering with.

The seat 21 may be coupled to the support frame 32 to be rotatable about the second rotation shaft 25. Specifically, the seat 21 may be coupled to the support frame 32 to be tiltable in the height direction H of the medical chair 10 about the second rotation shaft 25.

The support frame 32 may include a sheet corresponding surface 32a facing the sheet 21 and a coupling surface 32b coupled to the base frame 31. The sheet mating surface 32a and the mating surface 32b may correspond to each other in the height direction H of the medical chair 10.

The sheet corresponding surface 32a of the support frame 32 may be inclined. Specifically, the seat correspondence surface 32a of the support frame 32 is in the height direction H of the medical chair 10 with respect to the reference line R extending along the front-rear direction X of the medical chair 10. It may be inclined to face downward. In another aspect, the sheet mating surface 32a of the support frame 32 may include a first end (not shown) coupled to the seat 21 by the second rotating shaft 25 and a medical chair 10. It may include a second end (32aa) which is located opposite to the first end in the front-rear direction (X). The first end of the seat mating surface 32a may be located above the second end 32aa of the seat mating surface 32a in the height direction H of the medical chair 10. When defining the inclination angle of the sheet mating surface 32a of the support frame 32 measured with reference line R as "θ", the tilt angle of the sheet 21 is the tilt angle of the sheet mating surface 32a. It may be the same as (θ) or smaller than the inclination angle (θ) of the sheet mating surface 32a, that is, the sheet 21, the inclination angle of 0 ° and the sheet mating surface 32a with respect to the reference line (R). The tilting is possible in the height direction H of the medical chair 10 about the second rotational shaft 25 so as to have a tilting angle between the angles θ. In other words, the seat 21 supports the support frame 32. Tilting is possible in the height direction H of the medical chair 10 about the second rotating shaft 25 until it comes in contact with the seat corresponding surface 32a of the seat. (theta) may be larger than the tilting angle of the sheet 21. At this time, the tilting of the sheet 21 is not limited by the sheet 21 contacting the sheet mating surface 32a, but the second locking lever 410 ) By interfering with the bit 21 it can be limited.

The medical chair 10 may further include a seat cable 50 provided to participate in the tilting of the seat 21. The seat 21 may receive a driving force necessary for tilting from the seat actuator 70 through the seat cable 50. The seat cable 50 may connect the seat 21 and the seat actuator 70. That is, one end of the seat cable 50 may be coupled to the seat 21, and the other end of the seat cable 50 may be coupled to the seat actuator 70. The sheet cable 50 may be formed of a material that is not affected by the magnetic field. As an example, the seat cable 50 may include a Bowden cable. However, the seat cable 50 is not limited to any cable and may be the seat cable 50 as long as it is not affected by the magnetic field.

The medical chair 10 may further include a back cable 60 provided to participate in the tilting of the backrest 22. The backrest 22 may receive a driving force necessary for tilting from the backrest actuator 80 through the backrest cable 60. The backrest cable 60 may connect the backrest 22 and the backrest actuator 80. That is, one end of the back cable 60 may be coupled to the backrest 22, and the other end of the back cable 60 may be coupled to the backrest actuator 80. The back cable 60 may be formed of a material that is not affected by the magnetic field. As an example, the back cable 60 may include a Bowden cable. However, the back cable 60 is not limited to any cable, any one that is not affected by the magnetic field may be the back cable 60.

The medical chair 10 may further include an actuator provided to drive at least one of the seat cable 50 and the backrest cable 60. Preferably, the medical chair 10 includes a plurality of actuators including a seat actuator 70 provided to drive the seat cable 50 and a backrest actuator 80 provided to drive the backrest cable 60. And (70,80). The seat cable 50 may be provided to receive a driving force directly from the seat actuator 70. That is, the seat cable 50 may be directly connected to the seat actuator 70 as mentioned above. The backrest cable 60 may be provided to receive a driving force directly from the backrest actuator 80. That is, the back cable 60 may be connected directly to the back actuator 80 as mentioned above.

When using a plurality of

actuators

70, 80, the user can easily tilt the seat 21 and the backrest 22 with relatively less force than when the user manually tilts the seat 21 and the backrest 22. FIG. Can be. The plurality of

actuators

70 and 80 may be vulnerable to magnetic fields. Therefore, the plurality of

actuators

70 and 80 should be disposed in a space or region where the magnetic field does not reach.

As shown in FIG. 4, the base frame 31 and the seat assembly 20 may be disposed in the first space 4 exposed to the magnetic field. The magnetic resonance imaging apparatus 1 may be disposed in the first space 4 together with the base frame 31 and the seat assembly 20. Magnetic resonance imaging of the object 40 may be performed in the first space 4. As an example, the first space 4 may be a photographing room.

The first space 4 may include an installation surface on which the base frame 31 is disposed. Part of each of the seat cable 50 and the backrest cable 60 may be embedded in the installation surface of the first space (4).

As mentioned above, the plurality of

actuators

70 and 80 are vulnerable to the magnetic field and thus cannot be disposed in the first space 4. Accordingly, the plurality of

actuators

70 and 80 may be disposed in the second space 5 located outside the first space 4. That is, the plurality of

actuators

70 and 80 may be disposed in the second space 5 which does not reach the magnetic field. The first space 4 and the second space 5 may be spaces separated from each other. As an example, the second space 5 may be a control room. The plurality of

actuators

70 and 80 may be operated or controlled in the second space 5 by the user.

The medical chair 10 may further include a seat adjustment member 90 provided to participate in the tilting of the seat 21 together with the seat cable 50. The seat adjustment member 90 may have a shape extending substantially in the height direction H of the medical chair 10. The seat adjustment member 90 may connect the seat 21 and the base frame 31. That is, one end of the seat adjustment member 90 may be coupled to the seat 21, and the other end of the seat adjustment member 90 may be coupled to the base frame 31. The seat adjustment member 90 may include a cylinder 91 and a piston rod 92 coupled to the cylinder 91 to be movable. The cylinder 91 may be mounted to the base frame 31. The piston rod 92 may be mounted to the seat 21. Specifically, one end of the piston rod 92 may be movably coupled inside the cylinder 91, and the other end of the piston rod 92 may be mounted to the seat 21. The seat adjustment member 90 may include a gas spring. However, the seat adjustment member 90 is not limited to the gas spring, any one that can play a damping role can be adopted as the seat adjustment member 90.

The medical chair 10 may further include a backrest adjusting member 100 provided to participate in the tilting of the backrest 22 together with the backrest cable 60. The backrest adjusting member 100 may have a shape extending substantially in the front-back direction X of the medical chair 10. The backrest adjusting member 100 may connect the seat 21 and the backrest 22. That is, one end of the backrest adjustment member 100 may be coupled to the seat 21, and the other end of the backrest adjustment member 100 may be coupled to the backrest 22. The backrest adjusting member 100 may include a cylinder 101 and a piston rod 102 coupled to the cylinder 101 to be movable. The cylinder 101 may be mounted to the seat 21. The piston rod 102 may be mounted to the backrest 22. Specifically, one end of the piston rod 102 may be movably coupled inside the cylinder 101, and the other end of the piston rod 102 may be mounted to the backrest 22. The backrest adjusting member 100 may include a gas spring. However, the backrest adjusting member 100 is not limited to the gas spring, and any one that can play a damping role can be adopted as the backrest adjusting member 100.

The medical chair 10 may further include a guide pulley provided to guide the seat cable 50 and the back cable 60. Specifically, the medical chair 10 includes a plurality of guide pulleys including a seat guide pulley 200 provided to guide the seat cable 50 and a back guide pulley 300 provided to guide the back cable 60. It may further include (200,300).

The plurality of guide pulleys 200 and 300 may be disposed between the sheet 21 and the base frame 31. As an example, the plurality of guide pulleys 200 and 300 may be disposed in the support frame 32.

The medical chair 10 may include at least one seat guide pulley 200. As an example, the at least one seat guide pulley 200 may be disposed adjacent to the base frame 31 as shown in FIGS. 2 and 3. However, the position of the at least one seat guide pulley 200 is not limited to the above examples and can be variously changed.

The medical chair 10 may include at least one back guide pulley 300. As an example, the at least one backrest guide pulley 300 is adjacent to the first backrest guide pulley 310 and the base frame 31 disposed adjacent to the seat 21 as shown in FIGS. 2 and 3. It may include a second back guide pulley 320 is disposed. The first back guide pulley 310 may be located above the second back guide pulley 320 in the height direction H of the medical chair 10. The second back guide pulley 320 may be disposed adjacent to the at least one seat guide pulley 200 in the front-rear direction X of the medical chair 10. However, the position of the at least one backrest guide pulley 300 is not limited to the above examples and can be variously changed.

The medical chair 10 may further include a first locking device 400 provided to limit the tilting of the seat 21. The first locking device 400 may be referred to as a "seat locking device."

The first locking device 400 may include a second locking lever 410 provided to be rotatable about the second lever shaft 411. The second locking lever 410 may be coupled to the seat adjusting member 90 so as to be rotatable about the second lever shaft 411. Tilting of the seat 21 may be limited if the second locking lever 410 interferes with the seat 21. Specifically, the lever seating portion 21b may be formed in the seat 21. The tilting of the seat 21 may be limited when the second locking lever 410 is seated on the lever seating portion 21b of the seat 21. 2 and 3 illustrate a case in which one lever seating portion 21b is provided, the lever seating portion 21b may be provided in plural so as to adjust the degree of tilting of the seat 21 step by step.

The first locking device 400 may further include a second lever actuator 420 provided to drive the second locking lever 410. The second locking lever 410 may receive a driving force from the second lever actuator 420 and rotate about the second lever shaft 411. Since the second lever actuator 420 is vulnerable to the magnetic field, it cannot be disposed in the first space 4. Accordingly, the second lever actuator 420 may be disposed in the second space 5 which does not reach the magnetic field.

The first locking device 400 may further include a second lever cable 430 provided to connect the second locking lever 410 and the second lever actuator 420. As an example, the second lever cable 430 may include a Bowden cable. However, the second lever cable 430 may be the second lever cable 430 as long as the second lever cable 430 is not limited to the cable and is not affected by the magnetic field.

The medical chair 10 may further include a second locking device 500 provided to limit the tilting of the backrest 22. The second locking device 500 may be referred to as a "back lock".

The second locking device 500 may include a first locking lever 510 provided to be rotatable about the first lever shaft 511. The first locking lever 510 may be coupled to the backrest adjusting member 100 to be rotatable about the first lever shaft 511. Tilting of the backrest 22 may be limited if the first locking lever 510 interferes with the backrest 22. Specifically, the lever seating portion 22b may be formed in the backrest 22. Tilting of the backrest 22 may be limited if the first locking lever 510 is seated on the lever seating portion 22b of the backrest 22. 2 and 3 illustrate a case in which one lever seating portion 22b is provided, the lever seating portion 22b may be provided in plural so as to adjust the degree of tilting of the backrest 22 in steps.

The second locking device 500 may further include a first lever actuator 520 provided to drive the first locking lever 510. The first locking lever 510 may receive a driving force from the first lever actuator 520 to rotate about the first lever shaft 511. Since the first lever actuator 520 is vulnerable to the magnetic field, it cannot be disposed in the first space 4. Accordingly, the first lever actuator 520 may be disposed in the second space 5 not affected by the magnetic field.

The second locking device 500 may further include a first lever cable 530 provided to connect the first locking lever 510 and the first lever actuator 520. As an example, the first lever cable 530 may include a Bowden cable. However, the first lever cable 530 may be the first lever cable 530 as long as the first lever cable 530 is not limited to the cable and is not affected by the magnetic field.

The medical chair 10 may further include

operation buttons

610 and 620 provided to operate the first locking device 400 and the second locking device 500. The

operation buttons

610 and 620 may be provided at the upper end of the backrest 22 to facilitate the user's operation. However, the positions of the

operation buttons

610 and 620 are not limited to the above examples and may be variously changed. Specifically, the medical chair 10 has a first operation button 610 provided to operate the first locking device 400 and a second operation button provided to operate the second locking device 500. 620 may include.

When the user presses the first manipulation button 610, an electrical signal may be generated. The electrical signal generated at this time may be detected by a sensor (not shown). When the electrical signal is detected by the sensor, the controller (not shown) releases the lock state of the second locking lever 410 by operating the second lever actuator 420 so that the seat 21 can be tilted. When the user releases the first manipulation button 610, an electrical signal may no longer be generated. That is, when the electrical signal is no longer detected by the sensor, the controller operates the second lever actuator 420 to limit the tilting of the seat 21 to switch the second locking lever 410 into the locked state.

When the user presses the second manipulation button 620, an electrical signal may be generated. The electrical signal generated at this time may be detected by a sensor (not shown). When the electrical signal is detected by the sensor, the controller (not shown) releases the lock state of the first locking lever 510 by operating the first lever actuator 520 so that the backrest 22 can be tilted. When the user releases the second manipulation button 620, an electrical signal may no longer be generated. That is, when the electrical signal is no longer detected by the sensor, the controller operates the first lever actuator 520 to limit the tilting of the backrest 22 to switch the first locking lever 510 to the locked state.

The tilting angle of the seat 21 and the backrest 22 may be adjusted when the locking state of the second locking lever 410 and the first locking lever 510 is released.

When the user locks the second locking lever 410 by pressing the first operation button 610, the seat actuator 70 may be operated by the user's command. As the seat actuator 70 is actuated, the seat cable 50 can be pulled toward the seat actuator 70 or released from the seat actuator 70. When the seat cable 50 is pulled toward the seat actuator 70, the seat 21 may be tilted downward in the height direction H of the medical chair 10 about the second rotating shaft 25. The tilting direction of the seat 21 is described with reference to one end of the seat 21 to which the seat adjusting member 90 is coupled. At this time, the seat adjustment member 90 may be compressed. When the seat cable 50 is released from the seat actuator 70, the seat 21 may be tilted upward in the height direction H of the medical chair 10 about the second rotating shaft 25. . The tilting direction of the seat 21 is described with reference to one end of the seat 21 to which the seat adjusting member 90 is coupled. At this time, the seat adjustment member 90 may be tensioned. When the user releases the first operation button 610 and the second locking lever 410 is switched to the locked state, the seat actuator 70 may stop operating by a command of the controller. At this time, the seat cable 50 and the seat adjustment member 90 may stop the movement.

When the user locks the first locking lever 510 by pressing the second operation button 620, the backrest actuator 80 may be operated by the user's command. As the backrest actuator 80 operates, the backrest cable 60 may be pulled toward the backrest actuator 80 or released from the backrest actuator 80. When the backrest cable 60 is pulled toward the backrest actuator 80, the backrest 22 may be tilted to face forward in the front-back direction X of the medical chair 10 about the first rotational shaft 24. The tilting direction of the backrest 22 is described with reference to one end of the backrest 22 to which the backrest adjusting member 100 is coupled. At this time, the backrest adjusting member 100 may be compressed. When the backrest cable 60 is released from the backrest actuator 80, the backrest 22 may be tilted to face backward in the front-back direction X of the medical chair 10 about the first rotating shaft 24. . The tilting direction of the backrest 22 is described with reference to one end of the backrest 22 to which the backrest adjusting member 100 is coupled. At this time, the backrest adjusting member 100 may be tensioned. When the first locking lever 510 is switched to the locked state by the user releasing the second operation button 620, the backrest actuator 80 may stop operating by a command of the controller. At this time, the backrest cable 60 and the backrest adjusting member 100 may stop the movement.

5 is a view showing a medical chair according to a second embodiment of the present invention. Hereinafter, a description overlapping with the medical chair 10 according to the first embodiment may be omitted. The same reference numerals are assigned to configurations having the same names as those included in the medical chair 10 according to the first embodiment. 4 is also applied to the medical chair 10a according to the second embodiment.

As shown in FIG. 5, the seat cable 50 may be provided to receive a driving force indirectly from the seat actuator 70. Specifically, the seat cable 50 may be provided to receive a driving force from the seat actuator 70 via the

gear boxes

710 and 810 and the

pulleys

720 and 820.

The back cable 60 may be provided to receive a driving force indirectly from the back actuator 80. Specifically, the backrest cable 60 may be provided to receive a driving force from the backrest actuator 80 via the

gear boxes

710 and 810 and the

pulleys

720 and 820.

The medical chair 10a according to the second embodiment may further include

gear boxes

710 and 810. Specifically, the medical chair 10a according to the second embodiment may include a seat gear box 710 connected to the seat actuator 70, and a back gear box 810 connected to the backrest actuator 80. . The seat actuator 70 and the seat gear box 710 may be connected by a cable 730. The back actuator 80 and the back gear box 810 may be connected by a cable 830.

The medical chair 10a according to the second embodiment may further include

pulleys

720 and 820. Specifically, the medical chair 10a according to the second embodiment is provided so that the seat cable 50 is wound, and is coupled to the seat gear box 710 so as to be rotatable by receiving a driving force from the seat actuator 70. It may include a pulley 720. The medical chair 10a according to the second embodiment is provided so that the backrest cable 60 is wound and the backrest pulley 820 coupled to the backrest gear box 810 to be rotatable by receiving a driving force from the backrest actuator 80. ) May be further included.

When the user locks the second locking lever 410 by pressing the first operation button 610, the seat actuator 70 may be operated by the user's command. As the seat actuator 70 is actuated, the seat cable 50 may be wound around the seat pulley 720 or released from the seat pulley 720. When the seat cable 50 is wound around the seat pulley 720, the seat 21 may be tilted downward in the height direction H of the medical chair 10a about the second rotating shaft 25. The tilting direction of the seat 21 is described with reference to one end of the seat 21 to which the seat adjusting member 90 is coupled. At this time, the seat adjustment member 90 may be compressed. When the seat cable 50 is released from the seat pulley 720, the seat 21 may be tilted upward in the height direction H of the medical chair 10a about the second rotating shaft 25. . The tilting direction of the seat 21 is described with reference to one end of the seat 21 to which the seat adjusting member 90 is coupled. At this time, the seat adjustment member 90 may be tensioned. When the second locking lever 410 is switched to the locked state by the user releasing the first operation button 610, the seat actuator 70 may stop operating by a command. At this time, the seat pulley 720, the seat cable 50 and the seat adjustment member 90 can stop the movement.

When the user locks the first locking lever 510 by pressing the second operation button 620, the backrest actuator 80 may be operated by the user's command. As the backrest actuator 80 operates, the backrest cable 60 may be wound on the backrest pulley 820 or released from the backrest pulley 820. When the backrest cable 60 is wound around the backrest pulley 820, the backrest 22 may be tilted to face forward in the front-back direction X of the medical chair 10a about the first rotational shaft 24. The tilting direction of the backrest 22 is described with reference to one end of the backrest 22 to which the backrest adjusting member 100 is coupled. At this time, the backrest adjusting member 100 may be compressed. When the backrest cable 60 is released from the backrest pulley 820, the backrest 22 may be tilted to face backward in the front-back direction X of the medical chair 10a about the first rotating shaft 24. . The tilting direction of the backrest 22 is described with reference to one end of the backrest 22 to which the backrest adjusting member 100 is coupled. At this time, the backrest adjusting member 100 may be tensioned. When the first locking lever 510 is switched to the locked state by the user releasing the second operation button 620, the backrest actuator 80 may stop operating by a command of the controller. At this time, the backrest pulley 820, the backrest cable 60 and the backrest adjustment member 100 can stop the movement.

6 is a view showing a medical chair according to a third embodiment of the present invention. Hereinafter, a description overlapping with the medical chair 10 according to the first embodiment may be omitted. The same reference numerals are assigned to configurations having the same names as those included in the medical chair 10 according to the first embodiment.

As shown in FIG. 6, the medical chair 10b according to the third embodiment may include a base frame 31 extending in the front-back direction X of the medical chair 10b. The base frame 31 may include a first region 31a exerted by a magnetic field and a second region 31b positioned outside the first region 31a. That is, the base frame 31 may be disposed in one space and may include the first region 31a and the second region 31b which are divided according to the presence or absence of the magnetic field.

The medical chair 10b according to the third embodiment may further include a seat assembly 20 disposed on the first area 31a of the base frame 31. The seat assembly 20 may include a seat 21 and a backrest 22 coupled to the seat 21. Descriptions of the seat 21 and the backrest 22 will be omitted since they overlap with those described in the medical chair 10 according to the first embodiment.

The medical chair 10b according to the third embodiment may further include a plurality of

actuators

70 and 80 disposed in the second area 31b of the base frame 31. The plurality of

actuators

70 and 80 may include a seat actuator 70 provided to drive the seat cable 50 and a backrest actuator 80 provided to drive the backrest cable 60.

The medical chair 10b according to the third embodiment may further include a seat cable 50 provided to participate in the tilting of the seat 21. The seat 21 may receive a driving force necessary for tilting from the seat actuator 70 through the seat cable 50. The seat cable 50 may be provided to receive a driving force indirectly from the seat actuator 70. Specifically, the seat cable 50 may be provided to receive a driving force from the seat actuator 70 via the

gear boxes

710 and 810 and the

pulleys

720 and 820.

The medical chair 10b according to the third embodiment may further include a back cable 60 provided to participate in the tilting of the backrest 22. The backrest 22 may receive a driving force necessary for tilting from the backrest actuator 80 through the backrest cable 60. The back cable 60 may be provided to receive a driving force indirectly from the back actuator 80. Specifically, the backrest cable 60 may be provided to receive a driving force from the backrest actuator 80 via the

gear boxes

710 and 810 and the

pulleys

720 and 820.

The medical chair 10b according to the third embodiment may further include

gear boxes

710 and 810. Specifically, the medical chair 10b according to the third embodiment may include a seat gear box 710 coupled to the seat actuator 70 and a backrest gear box 810 connected to the backrest actuator 80. . The seat gear box 710 may be disposed to be adjacent to the seat actuator 70. In detail, the seat gear box 710 may be disposed in the second region 31b of the base frame 31 to be adjacent to the seat actuator 70. As an example, the seat gear box 710 may be coupled to the seat actuator 70. The backrest gear box 810 may be disposed to be adjacent to the backrest actuator 80. In detail, the backrest gear box 810 may be disposed in the second region 31b of the base frame 31 to be adjacent to the backrest actuator 80. As an example, the backrest gear box 810 may be coupled to the backrest actuator 80. The seat actuator 70 and the backrest actuator 80 may be connected to a power source (not shown) by a wire 900, respectively.

The medical chair 10b according to the third embodiment may further include

pulleys

720 and 820. Specifically, the medical chair 10b according to the third embodiment is provided so that the seat cable 50 is wound, and is coupled to the seat gear box 710 so as to be rotatable by receiving a driving force from the seat actuator 70. It may include a pulley 720. The medical chair 10b according to the third embodiment is provided so that the backrest cable 60 is wound, and the backrest pulley 820 coupled to the backrest gear box 810 to be rotatable by receiving a driving force from the backrest actuator 80. ) May be further included.

When the user locks the second locking lever 410 by pressing the first operation button 610, the seat actuator 70 may be operated by the user's command. As the seat actuator 70 is actuated, the seat cable 50 may be wound around the seat pulley 720 or released from the seat pulley 720. When the seat cable 50 is wound around the seat pulley 720, the seat 21 may be tilted downward in the height direction H of the medical chair 10b about the second rotating shaft 25. The tilting direction of the seat 21 is described with reference to one end of the seat 21 to which the seat adjusting member 90 is coupled. At this time, the seat adjustment member 90 may be compressed. When the seat cable 50 is released from the seat pulley 720, the seat 21 may be tilted upward in the height direction H of the medical chair 10b about the second rotating shaft 25. . The tilting direction of the seat 21 is described with reference to one end of the seat 21 to which the seat adjusting member 90 is coupled. At this time, the seat adjustment member 90 may be tensioned. When the second locking lever 410 is switched to the locked state by the user releasing the first operation button 610, the seat actuator 70 may stop operating by a command. At this time, the seat pulley 720, the seat cable 50 and the seat adjustment member 90 can stop the movement.

When the user locks the first locking lever 510 by pressing the second operation button 620, the backrest actuator 80 may be operated by the user's command. As the backrest actuator 80 operates, the backrest cable 60 may be wound on the backrest pulley 820 or released from the backrest pulley 820. When the backrest cable 60 is wound around the backrest pulley 820, the backrest 22 may be tilted to face forward in the front-back direction X of the medical chair 10b about the first rotational shaft 24. The tilting direction of the backrest 22 is described with reference to one end of the backrest 22 to which the backrest adjusting member 100 is coupled. At this time, the backrest adjusting member 100 may be compressed. When the backrest cable 60 is released from the backrest pulley 820, the backrest 22 may be tilted to face backward in the front-back direction X of the medical chair 10b about the first rotational shaft 24. . The tilting direction of the backrest 22 is described with reference to one end of the backrest 22 to which the backrest adjusting member 100 is coupled. At this time, the backrest adjusting member 100 may be tensioned. When the first locking lever 510 is switched to the locked state by the user releasing the second operation button 620, the backrest actuator 80 may stop operating by a command of the controller. At this time, the backrest pulley 820, the backrest cable 60 and the backrest adjustment member 100 can stop the movement.

In the above, specific embodiments have been illustrated and described. However, the present invention is not limited to the above-described embodiments, and those skilled in the art may make various changes without departing from the spirit of the technical idea of the invention as set forth in the claims below. .

Claims

A medical chair used for magnetic resonance imaging,

A base frame disposed in a first space affected by the magnetic field;

A seat assembly disposed on the base frame, the seat assembly comprising a seat and a backrest coupled to the seat;

A backrest cable provided to engage in tilting of the backrest; And

And a backrest actuator disposed in a second space located outside the first space to drive the backrest cable.
The method of claim 1,

A backrest adjusting member which connects the seat and the backrest and is engaged to tilt the backrest together with the backrest cable; And

And a first locking lever coupled to the backrest adjusting member so as to be rotatable about a first lever shaft.
The method of claim 2,

The tilting of the backrest is limited when the first locking lever interferes with the backrest.
The method of claim 2,

A first lever actuator provided to drive the first locking lever; And

And a first lever cable provided to connect the first locking lever and the first lever actuator.
The method of claim 1,

A seat cable provided to engage in tilting of the seat; And

And a seat actuator disposed in the second space to drive the seat cable.
The method of claim 5,

The first space includes an installation surface on which the base frame is disposed,

A portion of each of the seat cable and the backrest cable is embedded in the installation surface of the first space.
The method of claim 5,

A seat adjusting member connecting the seat and the base frame and engaged with the seat cable to tilt the seat; And

And a second locking lever coupled to the seat adjusting member so as to be rotatable about a second lever shaft.
The method of claim 7, wherein

The tilting of the seat is limited if the second locking lever interferes with the seat.
The method of claim 7, wherein

A second lever actuator provided to drive the second locking lever; And

And a second lever cable provided to connect the second locking lever and the second lever actuator.
The method of claim 5,

And a plurality of guide pulleys disposed between the seat and the base frame to guide the seat cable and the backrest cable.
The method of claim 5,

The seat cable is provided to receive a driving force directly from the seat actuator,

The backrest cable is a medical chair that is provided to receive a driving force directly from the backrest actuator.
The method of claim 5,

A gear box connected to each of the seat actuator and the backrest actuator; And

And a pulley provided to wind each of the seat cable and the backrest cable, the pulley being coupled to the gear box so as to be rotatable by receiving a driving force from each of the seat actuator and the backrest actuator.