JP2016129624A - Chair for artificial dialysis - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a chair for artificial dialysis that allows a patient to stably do an exercise to move feet in a comfortable posture during artificial dialysis.SOLUTION: A chair 10 for artificial dialysis is a chair for artificial dialysis including a right and left pair of armrests 70 that allows a seated patient to undergo artificial dialysis. The chair 10 for artificial dialysis includes a seat part 30 on which the patient's hip or femoral regions are placed, a backrest 40 disposed behind the seat part 30 that can be reclined around a shaft center in the right and left direction, and supports the patient's upper half body, a leg placement part 50 disposed in front of the seat part 30 that can be rotated around the shaft center in the right and left direction, on which the patient's legs are placed, and a support part 60 connected to the leg placement part 50 that supports a pedal mechanism P to cause the patient whose hip or femoral regions are placed on the seat part 30 to do a foot pedaling exercise.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an artificial dialysis chair.

  Conventionally, as a chair for artificial dialysis of this kind, Patent Document 1 discloses a chair for artificial dialysis comprising a seat, a backrest that can be laid down, a front droop on which a patient's calf is placed, and a step on which a patient's foot is placed. A chair is disclosed. In this artificial dialysis chair, the step is raised while maintaining the horizontal state in accordance with the horizontal displacement of the front sag, and each of the front sag, step, backrest and seat is in a horizontal state, and the chair is in the horizontal position. The whole is in bed.

  Patent Document 2 discloses a bed-type health exerciser in which a mounting rod is fixed to the lowermost portion of a horizontal frame bent in an L shape in a side view, and a pedal is rotatably mounted on the top of the mounting rod. It is disclosed. By rotating the pedal with a foot while the user is lying on the bed of Patent Document 2, it is possible to cause the user to perform a pedal rotation motion of the bicycle.

  Further, Patent Literature 3 and Patent Literature 4 also disclose a bed including a pedal mechanism for causing a patient lying on the bed to perform pedal rotation motion, as in Patent Literature 2.

JP 2009-225916 A Japanese Utility Model Publication No. 61-13013 Japanese Utility Model Publication No. 03-54637 JP 2006-122506 A

  By the way, if the patient is exercised to move the foot during artificial dialysis, the lower body blood flow is sent to the heart by the pumping effect of the foot, and the blood flow of the patient is promoted. It is preferable because it becomes shorter.

  However, the artificial dialysis chair of Patent Document 1 is either in a state in which the patient is seated, in a state in which the chair becomes a bed and the patient lies on the bed, or in a reclining state between the seated state and the bed state. It is only intended to be able to receive artificial dialysis in a posture, and it is not assumed that a patient sitting on a chair is allowed to exercise his / her legs while receiving artificial dialysis.

  Here, it is conceivable to install a stationary pedal mechanism in front of the artificial dialysis chair of Patent Document 1. However, in the state where the front sword is rotated upward and the step is raised, the patient sitting in the chair for artificial dialysis cannot place his foot on the stationary pedal mechanism.

  It is also conceivable to install a stationary pedal mechanism in the artificial dialysis chair of Patent Document 1. However, the artificial dialysis chair of Patent Document 1 does not include a mechanism for stably installing a stationary pedal mechanism in a step or a front hanging manner. For this reason, if a stationary pedal mechanism is simply installed on a step or a forefoot, the stationary pedal mechanism is installed in an unstable state with respect to the chair, and the patient uses the pedal mechanism in such a state. When the movement of moving the foot is performed, the pedal mechanism is displaced forward with respect to the step or the front sag, which causes a problem that the movement of moving the foot cannot be stably performed by the patient.

  On the other hand, the beds of Patent Documents 2 to 4 allow the patient to move the foot by the pedal mechanism with the sleeping state as a basic posture. However, in order to make the patient move the foot in a posture lying on the bed, especially for a patient undergoing artificial dialysis, the exercise moves the foot in an unnatural posture, and the artificial dialysis is performed in an easy posture. It is not preferable from the viewpoint of receiving.

  The objective of this invention is providing the chair for artificial dialysis which can make a patient exercise | movement which moves a leg stably with an easy posture at the time of artificial dialysis.

  In order to achieve the above-mentioned object, the present invention is easy for a patient sitting on a chair by connecting a support part for supporting an exercise assisting tool for causing a patient to perform a movement of moving a foot to a leg rest part. I tried to move my legs in a stable posture.

  Specifically, the chair for artificial dialysis according to the first embodiment of the present invention has a pair of left and right armrests, and is a chair for artificial dialysis for causing a seated patient to undergo artificial dialysis, and the patient's buttocks Or a seat on which the thigh is placed, a rear part of the seat, and a reclining operation around a horizontal axis, a back part that supports the upper body of the patient, and a front part of the seat, Can be rotated up and down around the axis of the leg, and a leg rest on which the patient's leg is placed and connected to the leg rest, and the patient who has the buttocks or thighs on the seat is moved And a support part that supports the exercise aid.

  According to this 1st form, an exercise assistance tool can be stably supported by a leg mounting part by a support part. Therefore, the exercise assisting tool does not shift forward with respect to the leg rest, and the patient can be exercised to move his / her legs stably in an easy posture sitting on a chair.

  The second form is the calf-placement in which, in the first form, the leg rest is disposed on the front side of the seat, can be turned up and down around the axis in the left-right direction, and the patient's calf is placed on the upper surface. A first mounting portion having a surface, and a foot mounting that is disposed on the front side of the first mounting portion and that can be pivoted up and down about an axis in the left-right direction and on which a patient's foot is placed A second mounting portion having a surface formed thereon, and the support portion is coupled to the second mounting portion.

  According to this 2nd form, the exercise assistance tool can be stably supported by the support part connected with the 2nd mounting part.

  A 3rd form is a 2nd form. WHEREIN: A support part is followed by the attachment part attached to a 2nd mounting part, and an attachment part, and the front side of a 2nd mounting part is rather than a foot mounting surface. And a projecting portion extending so as to project upward.

  According to the third embodiment, the exercise assisting device does not move forward from the protrusion. Therefore, the exercise assisting tool is not displaced forward, and the patient sitting on the chair can be caused to exercise to move his / her legs stably in an easy posture.

  The fourth form is a state in which the foot placement surface is maintained horizontally in the second or third form in conjunction with the vertical rotation of the first placement part. It further includes elevating means for elevating and lowering.

  According to the fourth embodiment, regardless of the vertical position of the second placement portion, the foot that is maintained in a parallel and horizontal state with respect to the surface (for example, the floor surface) on which the artificial dialysis chair is placed. Since an exercise assisting device can be installed on the mounting surface, the patient can always exercise to move his / her legs in a comfortable posture.

  In any one of the first to fourth aspects, the fifth form tilts the seat part backward in conjunction with the reclining operation of the backrest part so that the front side of the seat part is higher than the rear side. And tilting means.

  According to the fifth embodiment, since the front side of the seat becomes higher than the rear side in conjunction with the reclining operation of the backrest, the patient does not deviate forward when reclining the backrest and the backrest. Can drown. Therefore, even when reclining, it is possible to perform an exercise of moving the foot with the exercise assisting tool while receiving artificial dialysis in a stable posture.

  The chair for artificial dialysis according to the present invention can allow a patient to stably move his / her legs in an easy posture during artificial dialysis.

It is a perspective view which shows the structure of the chair for artificial dialysis which concerns on the 1st Embodiment of this invention. It is a disassembled perspective view which shows the structure of the chair for artificial dialysis which concerns on the 1st Embodiment of this invention. It is the III-III line expanded sectional view of FIG. It is a fragmentary perspective view which expands and shows the installation state of a pedal mechanism. It is the VV sectional view taken on the line of FIG. It is sectional drawing which shows a state when a backrest part is reclining. It is sectional drawing which shows when the chair for artificial dialysis by the 1st Embodiment of this invention will be in a bed state. It is a side view which shows each operation | movement form of the chair for artificial dialysis by the 1st Embodiment of this invention. FIG. 3 is a view corresponding to FIG. 1 showing a configuration of an artificial dialysis chair according to a second embodiment of the present invention. FIG. 3 is a view corresponding to FIG. 2 showing a configuration of an artificial dialysis chair according to a second embodiment of the present invention. FIG. 5 is a view corresponding to FIG. 4 showing an installation state of the pedal mechanism. It is the XII-XII sectional view taken on the line of FIG. FIG. 8 is a view corresponding to FIG. 7 showing the artificial dialysis chair according to the second embodiment of the present invention in a bed state. FIG. 9 is a view corresponding to FIG. 8 showing each operation mode of the artificial dialysis chair according to the second embodiment of the present invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The following description of the embodiments is merely exemplary in nature, and is not intended to limit the present invention, its application, or its use. In the following description, the front-rear direction corresponds to the front-rear direction as viewed from the patient sitting on the seat, the vertical direction corresponds to the vertical direction, and the left-right direction corresponds to the left-right direction.

[First Embodiment]
FIG. 1 shows an artificial dialysis chair 10 according to a first embodiment of the present invention. The artificial dialysis chair 10 includes a base 20, a seat 30, a backrest 40, a leg rest 50, A support portion 60 and an armrest portion 70 are provided.

  As shown in FIGS. 1 and 2, the base 20 includes a pair of left and right leg rods 21, a connecting rod 22, a pair of left and right front casters 23, a pair of left and right rear casters 24, and a pair of left and right stoppers 25. And a pair of left and right side walls 26, an armrest support 27, and an armrest link 28. The leg rods 21 and 21 are the same as each other, and both are made of a cylindrical pipe material whose middle portion is bent upward in an arc shape. The left and right leg rods 21, 21 are arranged with a space left and right, and these leg rods 21 are connected to each other by a connecting rod 22. The front caster 23 is attached to the front end of the leg rod 21, and the rear caster 24 is attached to the rear end of the leg rod 21, respectively. The stopper 25 is a lower surface of the front end of the leg pad 21 and is attached to the front caster 23 so as to be able to protrude and retract. The artificial dialysis chair 10 is in a state where the stopper 25 is lifted from the floor surface by immersion. Moving. The side wall 26 is a member for attaching a seat portion 30, link mechanisms 80 and 90, which will be described later, and is attached to the inside of the leg rod 21.

  Each of the armrest support bases 27 is pivotally supported on the left and right sides of the backrest portion 40 at the upper end portion so as to be pivotable about a horizontal axis, and supports the armrest portion 70. Further, the armrest support 27 is pivotally supported on the upper portion of the armrest link 28 so as to be rotatable about a lateral axis. The lower part of the armrest link 28 is pivotally supported by the upper part of the leg rod 21 so as to be rotatable around a horizontal axis. By this armrest link 28, the armrest portion 70 moves rearward while maintaining its upper surface horizontal in conjunction with the reclining operation of the backrest portion 40.

  The seat portion 30 is used to place the buttocks or thighs of a patient sitting on the artificial dialysis chair 10 and is supported by the pair of left and right side walls 26.

  The backrest portion 40 supports the upper body of the patient, and is disposed on the rear side of the seat portion 30 and can be reclined around an axis in the left-right direction.

  The leg rest 50 places a patient's leg. Here, the leg part of the patient placed on the leg rest part 50 includes a calf part and a leg part below the knee in the lower body of the patient. The leg rest portion 50 is disposed on the front side of the seat portion 30 and can be turned up and down around the axis in the left-right direction. The leg placement unit 50 includes a first placement unit 51 and a second placement unit 52.

  The first placement portion 51 is disposed on the front side of the seat portion 30 and can be turned up and down around a horizontal axis, and a flat calf placement on which a patient's calf portion is placed is placed on the front surface thereof. A surface 51a is formed.

  The second placement part 52 is disposed on the front side of the first placement part 51 and can be turned up and down around an axis in the left-right direction, and a flat surface on which a patient's foot is placed on the upper surface. The foot placement surface 52a is formed.

  The support part 60 is connected to the leg rest part 50 and supports the pedal mechanism P. The pedal mechanism P is a stationary exercise assisting tool that causes a patient who puts a buttocks or a thigh on the seat 30 to perform a footing exercise (movement to move the foot), and is a mechanism different from the artificial dialysis chair 10. It is. The pedal mechanism P is installed on the leg rest portion 50, and includes a main body portion P1 having a built-in load mechanism (not shown) and an end portion of a shaft portion P5 that is drivingly connected to the load mechanism and protruding left and right. Pedal portion P4 connected to the left and right end portions of shaft portion P5 projecting from portion P1, and rod-like front and rear bars P2, P3 integrally fixed to both front and rear end portions of main body portion P1 and extending in the horizontal direction .

  As shown in FIG. 2, the support portion 60 includes a pair of left and right attachment portions 61 and a protruding portion 62. Each of the attachment portions 61 includes a connecting plate 61a, an attachment piece 61b, and two holes 61c. The connecting plate 61a is a flat plate extending in the front-rear direction and in the vertical direction, and has a notch portion whose front upper portion is notched in a rectangular shape (see FIG. 3). The attachment piece 61b has a flat plate shape extending in the front-rear direction and in the horizontal direction, and is integrated by welding or the like on the rear upper end of the connection plate 61a. More specifically, the mounting piece 61b is disposed so that the surface thereof faces upward, and is welded to the rear and upper end positions of the notch portion in the connecting plate 61a. Each of the holes 61c is formed in the mounting piece 61b at a predetermined interval in the front-rear direction.

  The protrusion 62 is formed of a cylindrical tubular member having a substantially U-shape that is bent so as to form a curved shape that is convex upward in a front view viewed from the front-rear direction (see FIG. 3). It is integrally connected to the front end. More specifically, the protrusion 62 includes left and right vertical portions 62a extending in the vertical direction, and a horizontal portion 62b connected between upper ends of the vertical portions 62a.

  Each of the vertical portions 62a is integrally joined to the front end portion of the connecting plate 61a. Each of the vertical portions 62a extends in a direction (upward direction) orthogonal to the longitudinal direction (front-rear direction) of the connecting plate 61a, and is welded to a front end portion below the notch portion of the attachment piece 61b. The horizontal part 62b is extended from the upper end of each vertical part 62a. With the above configuration, the protruding portion 62 is continuous with the connecting plate 61 a of the mounting portion 61.

  The pair of left and right attachment portions 61 are attached to the second placement portion 52. More specifically, as shown in FIG. 3, the pair of left and right mounting pieces 61 b are screwed into the lower surface portion of the base 52 b of the second mounting portion 52 by inserting screws 61 d into the holes 61 c from below. By fastening, the second mounting portion 52 is attached. In this attached state, the projecting portion 62 extends so that the front side of the second placement portion 52 projects upward from the foot placement surface 52a.

  Here, as shown in FIG. 4, the pedal mechanism P is attached to the leg rest 50 in a state in which the first placement portion 51 is in a suspended state inclined forward and the second placement portion 52 is in a horizontal state. When installed, the main body portion P1 is disposed above the foot placement surface 52a with the front side inclined so as to face downward. The front bar P <b> 2 is placed on the foot placement surface 52 a of the second placement portion 52 and is held by the protruding portion 62. The rear bar P3 is in contact with the calf placement surface 51a of the first placement unit 51. The main body P1 is supported in a stretched state between the first mounting portion 51 and the protruding portion 62 by the front and rear bars P2 and P3, so that the pedal mechanism P is supported on the leg mounting portion 50. Like to do.

  The patient sits on the artificial dialysis chair 10 in the state shown in FIG. 4 and puts his / her foot on the pedal portion P4 to perform a legging exercise during the artificial dialysis. At this time, the pedal mechanism P does not move further forward than the support portion 60 even if a footing exercise is performed by the patient. More specifically, since the front bar P2 of the pedal mechanism P is held by the projecting portion 62 of the support portion 60 connected to the second placement portion 52, the pedal mechanism can be operated even if the patient performs a footing exercise. P hits the protruding portion 62 of the support portion 60 so that it does not shift forward. For this reason, the pedal mechanism P will be in the state stably installed in the 1st mounting part 51 and the 2nd mounting part 52. FIG.

  The artificial dialysis chair 10 according to the first embodiment of the present invention further includes a tilting link mechanism 80 (tilting means) and a lifting link mechanism 90 (lifting means).

  As shown in FIG. 5, the tilt link mechanism 80 includes a backrest actuator 81, a backrest bracket 82, a lever 83, an arm 84, a rotating link 85, and a seat bracket 86.

  The backrest bracket 82 supports the backrest portion 40 and connects the seat portion 30 and the backrest portion 40. The backrest bracket 82 includes two upper and lower horizontal frames 82a extending horizontally in the left-right direction and a pair of left and right extending portions 82b connected to the left and right ends of the horizontal frame 82a. Each of the horizontal frames 82a has a substantially rectangular shape in cross section. Each of the horizontal frames 82a is attached to the lower side of the back surface (rear surface) of the backrest portion 40 with a predetermined interval in the vertical direction. In addition, the upper end of the lever 83 is fixed to the lower end of the horizontal frame 82a disposed below the backrest 40. The pair of left and right extending portions 82b have a substantially L-shape when viewed from the side. Each of the extending portions 82 b is disposed below the left and right side portions of the backrest portion 40. The lower portion of the extending portion 82b is pivotally supported by the rear sides of the left and right sides of the seat portion 30 and the fulcrum x2.

  The upper end of the arm 84 is fixed to the lower end of the horizontal frame 82a disposed on the lower side. The lower part of the arm 84 is pivotally supported by the upper end of the rotation link 85 and a fulcrum x3.

  The seat bracket 86 includes a horizontal portion 86a and an inclined portion 86b continuous with one end of the horizontal portion 86a. The upper end of the horizontal portion 86 a is attached to the lower side of the seat portion 30. The end of the inclined portion 86b is pivotally supported by the lower portion of the rotary link 85 and a fulcrum x4.

  The backrest actuator 81 includes a main body portion 81a fixed to the side wall 26 of the base 20 and a rod 81b. The tip of the rod 81b is pivotally supported by the lower part of the lever 83 and a fulcrum x1. Although not shown, the backrest actuator 81 is controlled by a signal from a control device that receives a signal from the operation unit.

  With the above configuration, the rod 81b of the backrest actuator 81 moves relative to the main body 81a by driving of a drive source (not shown) built in the main body 81a, whereby the actuator 81 expands and contracts. When the actuator 81 extends to the maximum extent, the backrest portion 40 stands up (see FIGS. 5 and 8A), while when the actuator 81 contracts to the maximum extent, the backrest portion 40 remains horizontal (FIG. 7). FIG. 8 (c) and FIG. 8 (d)).

  That is, as shown in FIGS. 6 and 7, when the backrest actuator 81 contracts, the lower portion of the lever 83 moves forward while rotating around the fulcrum x1, and the backrest bracket 82 fixed to the lever 83 moves to the fulcrum x2. Move backward while rotating at. In this way, the backrest 40 reclines backward.

  When the backrest actuator 81 contracts from the state shown in FIG. 5, the lower part of the arm 84 moves forward while rotating around the fulcrum x3 as shown in FIG. 6, and is pivotally supported by the lower part of the arm 84. The rotation link 85 rotates forward about the fulcrum x4 as a rotation center. When the rotary link 85 rotates forward, the upper end of the rotary link 85 comes into contact with the convex portion 30 a formed on the lower surface side of the seat portion 30. At this time, the upper end of the rotary link 85 pushes the seat portion 30 upward via the convex portion 30a. As a result, the seat 30 is tilted backward with the fulcrum x2 and the fulcrum x4 as the rotation center so that the front side of the seat 30 is higher than the rear side.

  Further, when the backrest actuator 81 contracts from the state shown in FIG. 6, as shown in FIG. 7, the rotary link 85 rotates forward beyond the position of the convex portion 30a, and the upper end of the rotary link 85 contacts the convex portion 30a. Will not do. As a result, the seat portion 30 is tilted forward so that the front side of the seat portion 30 is at the same height as the rear side in conjunction with the reclining operation of the backrest portion 40.

  Next, the lifting link mechanism 90 will be described. As shown in FIG. 5, the elevating link mechanism 90 includes a leg resting actuator 91, a connection bracket 92, a turning bracket 93, and a leg resting link 94.

  The front portion of the connection bracket 92 is attached to the upper end of the base 51 b of the first placement portion 51. The upper portion of the base 51b of the first placement portion 51 is pivotally supported by the side wall 26 and the fulcrum y2 at the front side and the lower position of the seat portion 30. The pivot bracket 93 has a substantially L-shape when viewed from the side. The upper end of the pivot bracket 93 is attached to the upper portion of the side wall 26, and the lower portion of the pivot bracket 93 is connected to the upper portion of the leg rest link 94 and the fulcrum y3. It is pivotally supported. The lower part of the base 51b of the first placement unit 51 is pivotally supported by the base 52b and a fulcrum y4. The lower part of the leg rest link 94 is pivotally supported by the base 52b and a fulcrum y5.

  The leg resting actuator 91 includes a main body 91a fixed to the side wall 26 of the base 20 and a rod 91b. The tip of the rod 91b of the leg resting actuator 91 is pivotally supported by the rear portion of the connecting bracket 92 and a fulcrum y1. Although not shown, the leg resting actuator 91 is controlled by a signal from a control device that receives a signal from the operation unit.

  With the above configuration, the rod 91b of the leg resting actuator 91 is moved relative to the main body 91a by driving of a drive source (not shown) built in the main body 91a, whereby the actuator 91 expands and contracts. When the actuator 91 is contracted to the maximum, the first mounting portion 51 is in a suspended state (see FIGS. 5 and 8A), while the second mounting is performed when the actuator 91 is fully extended. It will be in the state (refer FIG.8 (d)) by which the foot mounting surface 52a of the part 52 was maintained horizontally in the position higher than the seat part 30. FIG.

  That is, when the leg resting actuator 91 extends from the state shown in FIG. 5, the connecting bracket 92 is pushed forward while being rotated at the fulcrum y <b> 1 and attached to the connecting bracket 92 as shown in FIG. 7. The base body 51b of the first mounting portion 51 is pushed up. At this time, the base 51b rotates upward with the fulcrum y2 as the rotation center. In addition, the leg mounting link 94 rotates together with the base 51b of the first mounting portion 51 in the upward direction with the fulcrum y3 as the rotation center. As a result, the first placement unit 51 rotates upward.

  Further, as shown in FIG. 7, when the leg resting actuator 91 is extended, the base 52b of the second placement part 52 is rotated upward in the base 51b and the leg rest link 94 of the first placement part 51. Along with the movement, the fulcrum y4 and y5 are raised about the rotation center. As a result, the second placement unit 52 rises in conjunction with the upward rotation of the first placement unit 51 while keeping the foot placement surface 52a horizontal.

  Next, the operation of the artificial dialysis chair 10 will be described with reference to FIG. In any state of the artificial dialysis chair 10 shown in FIGS. 8A to 8D, a patient sitting on the artificial dialysis chair 10 extends his / her leg and puts it on the pedal portion P4 of the pedal mechanism P. The pedal portion P4 can be turned around the shaft portion P5 to perform the legging motion.

  In the artificial dialysis chair 10 shown in FIG. 8A, the seat 30 is in a horizontal state and the backrest 40 is in a standing state. Further, the first placement unit 51 is in a suspended state, and the second placement unit 52 is in a horizontal state. The armrest portion 70 is in a horizontal state.

  A patient or a user shifts the artificial dialysis chair 10 from the state shown in FIG. 8A to the state shown in FIG. 8B by an operation unit (not shown) attached to the artificial dialysis chair 10. At this time, the backrest 40 reclins backward. In conjunction with the reclining operation of the backrest 40, the seat 30 tilts backward so that the front side of the seat 30 is higher than the rear side. As a result, in the state shown in FIG. 8B, the backrest 40 is inclined rearward, and the front side of the seat 30 is inclined higher than the rear side.

  Here, the inclination angle of the seat portion 30 in the state of FIG. 8B is 15 °, which indicates an angle that is inclined backward as much as possible. In addition, it is preferable that the maximum inclination angle of the seat part 30 is set to the angle of the range of 10 degrees-20 degrees.

  Thus, since the front side of the seat part 30 becomes higher than the rear side in conjunction with the reclining operation of the backrest part 40, the patient can move the seat part 30 and the backrest part without moving forward when the backrest part 40 is reclining. You can drown in 40. As a result, especially when the patient performs the foot rowing exercise in the state shown in FIG. 8B, the patient performs the rowing exercise by the pedal mechanism P while receiving artificial dialysis in a stable posture even when the backrest 40 is reclining. It can be carried out. In particular, a patient undergoing artificial dialysis may have a weak physical strength, and thus the patient's buttocks or thighs may slide down from the seat 30 during a foot row exercise. However, since the front side of the seat part 30 becomes higher than the rear side in conjunction with the reclining operation of the backrest part 40, a patient who undergoes artificial dialysis can stably perform a leg rowing exercise in an easy posture.

  Further, when the artificial dialysis chair 10 moves from the state shown in FIG. 8A to the state shown in FIG. 8B, the first placement portion 51 rotates upward. The second placement unit 52 rises in conjunction with the upward rotation of the first placement unit 51 while keeping the foot placement surface 52a horizontal. As a result, in the state shown in FIG. 8B, the first placement unit 51 is inclined forward, and the second placement unit 52 is maintained horizontally.

  Next, the artificial dialysis chair 10 is moved from the state shown in FIG. 8B to the state shown in FIG. At this time, the backrest part 40 further reclines. In conjunction with the reclining operation of the backrest 40, the seat 30 tilts forward so that the front side of the seat 30 is the same height as the rear side. As a result, in the state shown in FIG. 8C, the backrest 40 is in the horizontal state, and the seat 30 is returned to the horizontal state.

  In addition, when the first placement unit 51 further rotates upward, the second placement unit 52 moves the foot placement surface 52 a horizontally in conjunction with the upward rotation of the first placement unit 51. Ascend while maintaining. As a result, in the state shown in FIG. 8C, the first placement unit 51 is in a horizontal state, and the foot placement surface 52a of the second placement unit 52 is maintained in a horizontal state.

  Thus, in FIG.8 (c), all of the seat part 30, the backrest part 40, the 1st mounting part 51, and the 2nd mounting part 52 will be in a horizontal state. That is, the entire artificial dialysis chair 10 is in a bed state.

  Next, the artificial dialysis chair 10 is moved from the state shown in FIG. 8C to the state shown in FIG. At this time, the seat 30 and the backrest 40 do not operate while maintaining a horizontal state. The first placement portion 51 further pivots upward, and the second placement portion 52 maintains the foot placement surface 52a horizontally in conjunction with the upward rotation of the first placement portion 51. It rises to a position higher than the seat 30 in the state. As a result, in the state shown in FIG. 8D, the first placement portion 51 is inclined rearward, and the foot placement surface 52 a of the second placement portion 52 is higher than the seat portion 30. It will be in the state maintained horizontally.

  Here, even if the artificial dialysis chair 10 is shifted from the state shown in FIG. 8A to the state shown in FIG. 8D, the footrest of the second placement portion 52 is placed by the above-described lifting link mechanism 90. The placement surface 52a is kept horizontal. That is, the pedal mechanism P is installed on the foot placement surface 52a in a state of being kept horizontal. For this reason, regardless of the vertical position of the second placement portion 52, the pedal mechanism P can be installed on the foot placement surface 52a maintained in a horizontal state. As a result, the patient can always perform an exercise of moving his / her foot with the pedal mechanism P stably in an easy posture. Further, according to the state shown in FIG. 8 (d), it is possible to take a first-aid posture even when postural anemia occurs during the legging exercise.

  When the artificial dialysis chair 10 is shifted from the state shown in FIG. 8A to the state shown in FIG. 8C, the armrest portion 70 is interlocked with the reclining operation of the backrest portion 40, Descent while keeping the top surface horizontal.

  As described above, in the artificial dialysis chair 10 according to the first embodiment of the present invention, the pedal mechanism P is stably supported on the leg rest 50 by the support 60 connected to the second rest 52. Can do. For this reason, the pedal mechanism P does not deviate forward from the leg resting part 50 (the first placing part 51 and the second placing part 52), and has a comfortable posture for the patient sitting on the chair during artificial dialysis. You can make your feet move stably.

[Second Embodiment]
As shown in FIG. 9, the artificial dialysis chair 10 according to the second embodiment of the present invention includes a base 20, a seat 30, a backrest 40, a leg rest 53, a support 63, An armrest portion 70. That is, the chair 10 for artificial dialysis according to the second embodiment of the present invention is obtained by replacing the leg rest 50 and the support 60 according to the first embodiment with the leg rest 53 and the support 63. It is.

  Here, since the base 20, the seat part 30, the backrest part 40, the armrest part 70, and the pedal mechanism P are the same structures as the thing of 1st Embodiment, detailed description is abbreviate | omitted. Also, the tilting link mechanism 80 and the lifting link mechanism 90 shown in FIGS. 12 and 13 have the same configuration as that of the first embodiment, and thus detailed description thereof is omitted.

  The leg rest 53 places the patient's leg. Here, the leg part of the patient placed on the leg rest part 53 includes the part of the calf part below the knee in the lower body of the patient. The leg placing portion 53 is disposed on the front side of the seat portion 30 and can be turned up and down around an axis in the left-right direction. A flat calf placement surface 53a on which a patient's calf portion is placed is formed on the front surface thereof. Has been.

  The support part 63 is connected to the leg rest part 53 and supports the pedal mechanism P. As shown in FIG. 10, the support portion 63 includes a pair of left and right attachment portions 64 and a protruding portion 65.

  Each of the attachment portions 64 includes a connecting plate 64a, an attachment piece 64b, a first hole 64c, and a second hole 64d. The connecting plate 64a is a flat plate extending in the front-rear direction and in the vertical direction. The attachment piece 64b is connected to one end of the connecting plate 64a and has a substantially triangular shape in a side view as viewed from the left-right direction. The first hole 64c and the second hole 64d are formed in the mounting piece 64b with a predetermined interval in the vertical direction, and the first hole 64c is formed below the mounting piece 64b, and the second hole 64d is formed above the mounting piece 64b.

  As shown in FIG. 12, the first hole 64c of the support part 63 is pivotally supported by the lower part of the leg mounting link 94 and the fulcrum y4, and the second hole 64d of the support part 63 is the lower part of the base 53b. And pivotally supported at the fulcrum y5. For this reason, when the leg resting actuator 91 is extended from the state of FIG. 12, as shown in FIG. 13, the support 63 is pivoted along with the upward rotation of the base 53b of the leg rest 53 and the leg rest link 94. It rises with y4 and y5 as the center of rotation. As a result, the support part 63 rises in conjunction with the upward rotation of the leg rest part 53 in a state where the connecting plate 64a of the support part 63 is kept horizontal.

  The protrusion 65 is formed of a cylindrical tubular member having a substantially U-shape that is bent so as to form a curved shape convex upward in a front view as viewed from the front-rear direction (see FIG. 10). It is integrally connected to the front end. The protrusion 65 includes left and right vertical portions 65a extending in the vertical direction, and a horizontal portion 65b connected between upper ends of the vertical portions 65a. Each of the vertical portions 65a is integrally joined to the front end portion of the connecting plate 64a. More specifically, each of the vertical portions 65a extends in a direction (upward direction) orthogonal to the longitudinal direction (front-rear direction) of the connecting plate 64a and is welded to the front end portion below the notch portion of the mounting piece 64b. ing. The horizontal portion 65b extends from the upper end of each vertical portion 65a. With the above configuration, the protruding portion 65 is continuous with the connecting plate 64 a of the mounting portion 64.

  Here, as shown in FIG. 11, when the pedal mechanism P is installed on the leg rest 53 with the leg rest 53 tilted forward, the main body P1 is tilted so that the front side faces downward. In the state, it is disposed above the connecting plate 64 a of the support portion 63. The front bar P2 is placed on the upper portion of the connecting plate 64a and is held by the protruding portion 65. The rear bar P3 is in contact with the calf placement surface 53a of the leg placement portion 53. The main body P1 is supported in a stretched state between the leg resting portion 53 and the protruding portion 65 by the front and rear bars P2 and P3, so that the pedal mechanism P is supported on the connecting plate 64a of the support portion 63. Like to do.

  The patient sits on the artificial dialysis chair 10 in the state shown in FIG. 11 and puts his / her foot on the pedal portion P4 to perform a legging exercise during the artificial dialysis. At this time, the pedal mechanism P does not move further forward than the support portion 63 even if a footing exercise is performed by the patient. More specifically, since the bar P2 of the pedal mechanism P is held by the projecting portion 65 of the support portion 63 connected to the leg rest portion 53, the pedal mechanism P is supported by the support portion even when the patient performs a footing exercise. It abuts against the projecting portion 65 of 63 and does not shift forward. For this reason, the pedal mechanism P will be in the state stably installed in the leg mounting part 53. FIG.

  Next, the operation of the artificial dialysis chair 10 will be described with reference to FIG.

  In the artificial dialysis chair 10 shown in FIG. 14A, the leg resting portion 53 is in a suspended state. When the artificial dialysis chair 10 moves from the state shown in FIG. 14A to the state shown in FIG. 14B, the leg resting portion 53 rotates upward. The support part 63 rises in conjunction with the upward rotation of the leg rest part 53 while maintaining the connecting plate 64a of the attachment part 64 horizontally. As a result, in the state shown in FIG. 14B, the leg resting portion 53 is inclined forward, and the connecting plate 64a is maintained horizontally.

  Further, when the leg resting portion 53 further pivots upward, the support portion 63 rises in conjunction with the upward pivoting of the leg resting portion 53 while maintaining the connecting plate 64a of the attachment portion 64 horizontally. As a result, in the state shown in FIG. 14C, the leg rest portion 53 is in a horizontal state, and the connecting plate 64a is maintained in a horizontal state.

  Next, the artificial dialysis chair 10 is moved from the state shown in FIG. 14C to the state shown in FIG. The leg placing portion 53 further pivots upward, and the support portion 63 is higher than the seat portion 30 in a state where the connecting plate 64a of the mounting portion 64 is maintained horizontally in conjunction with the upward pivoting of the leg placing portion 53. Ascend to position. As a result, in the state shown in FIG. 14 (d), the leg resting portion 53 is inclined rearward, and the connecting plate 64 a is maintained horizontally at a position higher than the seat portion 30.

  As described above, even when the artificial dialysis chair 10 is moved from the state shown in FIG. 14A to the state shown in FIG. 14D, the connecting plate 64 a in the support portion 63 is kept horizontal by the lifting link mechanism 90. Is maintained. That is, the pedal mechanism P is installed on the connecting plate 64a maintained in a horizontal state. For this reason, regardless of the vertical position of the support part 63, the pedal mechanism P can be installed on the connecting plate 64a maintained in a horizontal state. As a result, the patient can always exercise to move his / her legs stably in an easy posture. Further, according to the state shown in FIG. 8 (d), it is possible to take a first-aid posture even when postural anemia occurs during the legging exercise.

  As described above, in the artificial dialysis chair 10 according to the second embodiment of the present invention, the pedal mechanism P can be stably supported on the leg rest portion 53 by the support portion 63 connected to the leg rest portion 53. Therefore, the pedal mechanism P can cause the patient sitting on the chair to stably move his / her foot in an easy posture during artificial dialysis without shifting forward from the leg rest 53.

[Other Embodiments]
In the artificial dialysis chair 10 according to the first embodiment of the present invention, the protruding portion 62 of the support portion 60 is formed in a substantially U-shape that is bent so as to form a curved shape that is convex upward. It is not limited. That is, the protrusion 62 may be formed in various shapes such as a wall shape or a lattice shape as long as it protrudes upward. The same applies to the protruding portion 65 of the support portion 63 in the second embodiment of the present invention.

  In the artificial dialysis chair 10 according to the first embodiment of the present invention, the pedal mechanism P that causes the patient to perform the foot rowing exercise is used as the exercise assisting device, but is not limited to this configuration. That is, any exercise assisting device may be used as long as it exercises moving the foot. Other exercise assisting tools may be, for example, a step mechanism for performing a stepping exercise, a mechanism for performing an exercise for opening and closing a foot left and right, and the like. The same applies to the second embodiment of the present invention.

  In the artificial dialysis chair 10 according to the first embodiment of the present invention, the pedal mechanism P is installed on the leg rest 50, but is not limited to this configuration. That is, the pedal mechanism P may be fixed so as not to be separated from the support portion 60 by attaching the front side bar P2 of the pedal mechanism P to the support portion 60 using fastening means such as screws. Further, in order to further stabilize the installation state of the pedal mechanism P, it is preferable to attach the rear bar P3 of the pedal mechanism P to the leg rest 50 using a fixing means such as a cloth band. The same applies to the second embodiment of the present invention. In short, the exercise assisting tool only needs to be supported by the support portion.

  As mentioned above, although embodiment about this invention was described, this invention is not limited only to the above-mentioned embodiment, A various change is possible within the scope of the invention.

  INDUSTRIAL APPLICABILITY The present invention can be industrially used as a chair used for long-term dialysis treatment.

10: Chair for artificial dialysis 30: Seat 40: Backrest 50, 53: Leg rest 51: First placement 51a: Calf placement surface 52: Second placement 52a: Foot placement surface 60 63: support part 70: armrest part 80: tilting link mechanism (tilting means)
90: Elevating link mechanism (elevating means)
P: Pedal (exercise aid)

Claims (5)

A chair for artificial dialysis for having a pair of left and right armrests and receiving artificial dialysis for a seated patient,
A seat on which the patient's buttocks or thighs are placed;
A backrest that is arranged on the rear side of the seat and can be reclined around an axis in the left-right direction to support the upper body of the patient;
A leg rest that is placed on the front side of the seat, is pivotable up and down around a lateral axis, and rests on a patient's leg;
A chair for artificial dialysis, comprising: a support unit that is connected to the leg rest part and supports an exercise assisting tool that causes a patient who puts a buttocks or a thigh on the seat part to move his / her foot. The artificial dialysis chair according to claim 1,
The leg rest is
A first placement portion disposed on the front side of the seat portion, rotatable up and down around a lateral axis, and having a calf placement surface on which an upper portion of the patient's calf portion is placed;
A second placement portion disposed on the front side of the first placement portion, pivotable up and down around a lateral axis, and having a foot placement surface on which a patient's foot is placed; Have
The support portion is an artificial dialysis chair connected to the second placement portion. The artificial dialysis chair according to claim 2,
The support part is
An attachment portion attached to the second placement portion;
An artificial dialysis chair, comprising: a projecting portion that is continuous with the attachment portion and extends so as to project the front side of the second placement portion upward from the foot placement surface. The artificial dialysis chair according to claim 2 or 3,
For artificial dialysis, further comprising elevating means for elevating and lowering the second placement portion in a state where the foot placement surface is maintained horizontally in conjunction with the vertical rotation of the first placement portion. Chair. In the chair for artificial dialysis according to any one of claims 1 to 4,
A chair for artificial dialysis, further comprising tilting means for tilting the seat portion backward in conjunction with the reclining operation of the backrest portion so that the front side of the seat portion is higher than the rear side.

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