JP2017176805A - Chair for operation room - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a chair for an operation room that is movable by a user using his/her feet.SOLUTION: A seat part 3 and a pedestal base 4 are provided at a top end and a bottom end of a metallic pole 2, respectively. The pedestal base 4 has projections 4a-4d in the front-back and right-left directions, and intervals between the adjacent projections 4a-4d at an edge of the pedestal base 4 are pressing parts 4e-4h smoothly recessed inward. A distance between the projections 4a and 4b in the front-back direction is long, and a distance between the projections 4c and 4d in the right-left direction is short, and casters 6a-6d are mounted on the lower surfaces of the projections 4a-4d. A user is seated on the seat part 3, and positions his/her feet near the pressing parts 4e and 4f. In order to move the chair 1, the user abuts one foot on the pressing parts 4e and 4f and pushes them in a desired direction with the foot, which causes the chair 1 to move in that direction. Thus, the user can move the chair 1 in any direction even when both hands are occupied.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an operating room chair that can sit on a middle waist and can continue working for a long time.

  Physicians at medical surgery sites often perform medical operations for a long time while standing. In such a standing state, since the fatigue is large from the waist to the foot, a sitting chair used in a middle waist posture is used.

  Patent Document 1 discloses a stool on which a caster that can be used by a doctor for surgery is attached. By using this stool, fatigue on the legs and legs due to a long-time medical operation is greatly reduced.

Japanese Utility Model Publication No. 3-78534

  In the operating room, the doctor may change the standing position according to the surgical site of the patient. For example, when the abdomen of the same patient is continuously operated after the chest is operated, it is necessary to move the sitting chair in the range of about several tens of centimeters in the vertical and horizontal directions.

  However, blood and body fluids may be attached to both hands of the doctor, and the sitting chair cannot be moved by touching the saddle portion or the like from the hygiene aspect. In the sitting chair of Patent Document 1, the waist is lightly lifted during movement to remove the stopper, and the saddle is pushed by the waist to move to a target position.

  Pushing the chair with your back in the middle waist state makes it difficult to lift the waist because the way the stopper works changes depending on the weight, etc., and the chair may not move or the caster may slide greatly, leading to an accident There is. Therefore, it is difficult and dangerous for doctors who are not accustomed to using this sitting chair.

  In addition, when the stool chair of Patent Document 1 is standing up and trying to move it by pushing the cross-shaped caster pedestal support shaft with a foot, the caster pedestal support shaft rotates or moves in the desired direction. It is difficult to move in an oblique direction. Depending on the case, there is a risk that the sitting chair may be moved to a greatly displaced place or fall down.

  An object of the present invention is to solve the above-described problems and to provide an operating room chair that allows a user to stably move in any direction using one leg even when both hands cannot be used. is there.

  In order to achieve the above object, an operating room chair according to the present invention is provided with a seat at the upper end of a support column and a flat pedestal base at the lower end. The pedestal base has protrusions in four directions, front, rear, left and right. The operating room chair is formed and has casters attached to the lower surfaces of the tips of the projections, and the length between the projections facing in the left-right direction is shorter than the length between the projections facing in the front-rear direction. The edge of the pedestal base that connects the protrusions is provided with an arc-shaped pressing portion that is recessed inward.

  According to the operating room chair according to the present invention, it is possible to use it while sitting lightly when performing a long-time operation, and it is easy to move using a foot, even in a narrow surgical site.

It is a perspective view of an operating room chair. It is a top view. It is a front view. It is a side view. It is explanatory drawing of the caster of an unloaded state. It is explanatory drawing of the caster of a load state. It is a perspective view of the modification of the operating room chair.

The present invention will be described in detail based on the embodiments shown in the drawings.
1 is a perspective view of an operating room chair according to the embodiment, FIG. 2 is a plan view, FIG. 3 is a front view, and FIG. 4 is a side view. A seat portion 3 is provided at the upper end of the metal column 2 of the operating room chair 1, and a pedestal base 4 made of a planar metal plate having a thickness of about 6 mm is provided at the lower end. The pedestal base 4 having a weight lowers the center of gravity of the operating room chair 1 and has a structure that is less likely to fall than a conventional surgical chair.

  A disk-shaped mounting portion 2 a is provided at the bottom of the support column 2, and bolts 5 are inserted into the mounting portion 2 a and four mounting holes provided in the pedestal base 4, so that the support column 2 is mounted on the pedestal base 4. It is firmly fixed on the top.

The base 4 is formed with four protrusions 4a to 4d in the front, rear, left, and right directions, and the edge of the base 4 between the protrusions 4a to 4d is smoothly depressed into an arcuate pressing portion 4e to 4d. Connected by 4h. A base portion 7a of each of the casters 6a to 6d is fixed to the lower surface of the front end of each of the protrusions 4a to 4d of the pedestal base 4 with a downward bolt or the like (not shown).
That is, the casters 6a and 6b are attached to the protrusions 4a and 4b in the front-rear direction, respectively, and the remaining two casters 6c and 6d are attached to the protrusions 4c and 4d facing in the left-right direction.

  The distance between the protrusions 4a and 4b in the front-rear direction from the column 2 of the base 4 is increased, and the distance from the column 2 of the protrusions 4c and 4d in the left-right direction is decreased. Since the user often leans forward and the center of gravity is forward, the length from the support column 2 to the forward projection 4a is larger than the length from the support column 2 to the rear projection 4b. It is preferable to do.

  As a specific exemplary dimension, the length from the center of the column 2 of the base 4 to the front end of the front protrusion 4a is, for example, 33 cm, and the length to the front end of the rear protrusion 4b. Is, for example, 25 cm, and the length of the protrusions 4c, 4d to the tip is 18 cm, for example. The width between the protrusions 4c and 4d is, for example, narrower than the shoulder width of a person, and the length between the protrusions 4c and 4d is about 2/3 to 1/2 of the length between the protrusions 4a and 4b. Is preferred.

  As shown in FIG. 5, the base portion 7a of the casters 6a to 6d is rotatable in an arbitrary direction with respect to the pedestal base 4 around an axis facing the vertical direction, and is supported in the horizontal direction provided on the base portion 7a. A wheel 8 whose outer periphery is rubber is rotatably supported on the shaft 7b. The support shaft 7b is slightly movable up and down with respect to the base portion 7a, and the support shaft 7b is always biased downward by a spring 7c.

  Furthermore, a brake piece 7d is provided in a part of the base portion 7a. When a load is applied to the casters 6a to 6d in the vertical direction and the wheel 8 is pushed upward by a reaction force from the floor surface, it is shown in FIG. Thus, the support shaft 7b moves upward, the braking piece 7d bites into the outer periphery of the wheel 8, and the rotation of the wheel 8 is restricted.

  In addition, the support column 2 has two tubular bodies that are stretchably connected to each other, and the seat portion 3 is urged upward by a hydraulic mechanism provided on the support column 2 to have a cushioning property. Further, the height of the seat portion 3 can be adjusted to an arbitrary position by operating the operation lever 3a. The seat portion 3 is shaped like a saddle of a bicycle, for example, and is sized so as to sit down lightly by straddling. Further, a waist contact portion can be provided at the rear portion of the seat portion 3.

  The seat part 3 may be fixed to the support column 2 so as not to rotate. In this case, the front-rear direction of the seat part 3 coincides with the front-rear direction of the protrusions 4a, 4b. Further, a lockable operation portion may be provided, and the seat portion 3 may be fixed in an arbitrary direction.

  In use, when the position of the operating room chair 1 is determined, the protrusions 4a and 4b of the base 4 are directed in the front-rear direction, and the user sits on the seat 3, the buttocks are elasticized by the cushioning property of the hydraulic mechanism. Retained. When the weight is further applied, as shown in FIG. 6, the support shaft 7b of the casters 6a to 6d is raised, the outer periphery of the wheel 8 is in contact with the braking piece 7d of the base portion 7a, and the rotation of the wheel 8 is restricted. A person can perform an operation or the like at a stable position. That is, when the user puts the collar on the seat 3, the support shaft 7b is lifted against the urging force of the spring 7c, the wheels 8 of the casters 6a to 6d are braked, and the base 4 is immovable. The safety of the person is ensured.

  At this time, the user places both feet in the vicinity of the pressing portions 4e and 4f of the operating room chair 1. Since the protrusions 4c and 4d do not protrude sufficiently in the left-right direction, the operating room chair 1 is more likely to fall in the left-right direction than in the front-rear direction. Can be supplemented. In addition, even when an assistant is standing beside the doctor sitting on the operating room chair 1 at the operation site, the operating room chair 1 is obstructive because the lateral protrusions 4c and 4d are short. There is no.

  For example, when the user floats from the seat 3 to move the operating room chair 1, the wheel 8 is separated from the braking piece 7d by the urging force of the spring 7c, and the braking is released. In this state, to move the pedestal base 4 forward or diagonally forward, the pressing portion 4g or 4h is pushed in that direction by one foot, and to move backward or diagonally backward or laterally, the pressing portion 4e or 4f is Just push in the direction.

  As described above, when the pressing portions 4e to 4h of the pedestal base 4 are pushed with one foot in the direction to be moved, the wheels 8 of the casters 6a to 6d rotate in that direction, so that the user can use even if both hands are blocked. A person can move the operating room chair 1 in an arbitrary direction by himself / herself.

  When the operating room chair 1 is moved rearward to the right, the right foot in the moving direction is used as an axial foot, and the vicinity of the curved portions of the pressing portions 4f and 4h is pressed in the horizontal direction with the buttocks or bottom surface of the left foot. Since the pedestal base 4 made of a metal plate is heavy, it does not slide vigorously, and the operating room chair 1 gradually moves to the right rear.

  For example, when the operating room chair 1 is moved 20 cm in the right direction, the pressing part 4 f is pushed by the back of the left foot and moved about 15 cm to the right rear, and then the pressing part 4 h is pushed and about By moving about 15 cm, the operating room chair 1 can move 20 cm in the right direction.

  As described above, the operating room chair 1 is moved in any direction of the front-rear direction, the left-right direction, and the oblique direction by rotating the casters 6a to 6d in that direction by pressing the pressing portions 4e to 4h by the user's feet. It becomes possible.

  FIG. 7 is a perspective view of a modified operating room chair 1, and the edges of the pressing portions 4 e to 4 h of the pedestal base 4 are bent downward to be wide.

  As a result, when the operating room chair 1 is moved by using the feet, the pressing parts 4e to 4h can be pressed by the feet without pain, and the operating room chair 1 is easily moved. Moreover, even if the edges of the pressing portions 4e to 4h are trimmed with rubber or the like, the foot can be pressed without slipping.

  Further, when the operating room chair 1 is not used, it is not necessary to take up a large space by moving it to the corner of the room.

DESCRIPTION OF SYMBOLS 1 Operating room chair 2 Support | pillar 3 Seat part 4 Base base 4a-4d Protrusion part 4e-4h Press part 6a-6d Caster 8 Wheel

In order to achieve the above object, an operating room chair according to the present invention is provided with a seat at the upper end of a support column and a flat pedestal base at the lower end. The pedestal base has protrusions in four directions, front, rear, left and right. is formed, a operating theater chairs fitted with casters each tip lower surface of these projections, the caster brake to the wheels is applied a load is applied to the seat, so that the wheel becomes unrotatable been, the length between the projections facing the pedestal base of the left and right direction, shorter than the length between the projections facing the front-rear direction, four edges of the pedestal base connecting between said respective projection Are each provided with an arc-shaped pressing portion that is smoothly recessed inward.

Claims (5)

An operating room in which a seat is provided at the upper end of the support column, a flat pedestal base is provided at the lower end, protrusions are formed on the pedestal base in four directions, front, rear, left and right, and casters are attached to the lower surfaces of the tips of these protrusions. A chair,
The length between the projections facing in the left-right direction is shorter than the length between the projections facing in the front-rear direction, and the edge of the pedestal base that connects the projections has an arcuate depression recessed inside. An operating room chair provided with a section.   The operating room chair according to claim 1, wherein a length between the protrusions facing in the left-right direction is 2/3 to 1/2 of a length between the protrusions facing in the front-rear direction.   3. The operating room according to claim 1, wherein a length of the pedestal base from the support column to the forward projection is greater than a length from the support column to the rear projection. 4. Chair. .
The operating room chair according to any one of claims 1 to 3, wherein the pressing portion is wide in the vertical direction.   The operating room according to any one of claims 1 to 4, wherein the caster is configured such that when a load is applied to the seat portion, braking is applied to a wheel so that the wheel cannot rotate. Chair.

Images