JPH071143Y2 - Blood sampling seat - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial Field of the Invention The present invention relates to a blood collecting seat that is installed in, for example, a mobile blood collecting vehicle or a hospital.

2. Description of the Related Art Conventional techniques and problems In the conventional blood collection, it is common to lie on a bed and collect blood in a lying posture in order to prevent anemia of the blood donor.

However, in recent years, blood sampling has come to be performed in two ways, that is, conventional blood sampling and component blood sampling. In component blood sampling, only plasma is collected from the once extracted blood, and other blood is again collected into the donor's body. Since this is a blood collection method in which the blood is collected, it is essential that the heart of the human body is located above the blood collection device when performing this component blood collection.

Therefore, when performing component blood sampling, it is necessary to have a seat that can ensure a sitting posture with the upper body raised to some extent.
As disclosed in Japanese Patent No. 25, the conventional bed-type blood collection seat that allows the human body to move from a relaxed lying state to a state in which the head is lowered when anemia occurs is used for component blood collection. Has a problem that it is difficult to apply.

An object of the present invention is to provide a blood sampling seat that can be used for both component blood sampling and blood blood sampling.

Means for Solving the Problems According to the present invention, a blood collecting seat is attached to a fixed seat horizontally attached to and supported by a base, and is attached to front and rear edges of the fixed seat so as to be vertically rotatable. The front and rear first movable seats and the front and rear second movable seats that are rotatably attached to the front and rear edges of the front and rear first movable seats at least downward, respectively, and are attached to a base. A front and rear first arm that connects the front and rear sliders supported by a supported guide member so as to be movable in the front and rear direction and the front and rear first movable seats, and the front and rear sliders and the front and rear second movable seats. The front and rear second movable seats and the front and rear second movable seats are supported by the front and rear second arms connecting the front and rear, and the front and rear sliders are moved in the front and rear direction by a drive mechanism. Tosu It is something.

Action As described above, the front and rear first and second movable seats change their angles upward and downward by the front and rear first and second arms as the front and rear sliders move in the front and rear direction. The second movable seat stands up at a predetermined angle with respect to the fixed seat and becomes the backrest, and the other first and second movable seats are slightly lowered from the fixed seat and put on the legs. It is possible to easily obtain a bed state in which the front and rear first and second movable sheets are connected to the fixed sheet in a substantially horizontal state, which is suitable for normal blood sampling, by only moving the slider in the front-rear direction.

Embodiment An embodiment of the present invention will be described below with reference to the accompanying drawings.

In the figure, reference numeral 1 is a base, and a fixed sheet 2 is fixed in a horizontal state on a central portion of the base 1 by a bracket, and a first movable sheet is attached to an edge of the fixed sheet 2 in the front-rear direction.
3,3 'are movably connected by hinges, and second movable seats 4,4' are further connected by hinges to the front and rear end edges of the first movable seats 3,3 '. There is.

Two geared motors 5, 5 ′ are fixedly arranged on the base 1 below the fixed seat 2, and the geared motors 5, 5 ′ are fixed to the base 1.
Front and rear screws 6, which are respectively driven by 5 ',
6'is mounted and supported on the base in the front-back direction.

Sliders 7 and 7'made of female screw members are respectively screwed into the screws 6 and 6 ', and first and second arms 8 and 8'and one end rotatably attached to the sliders 7 and 7'. The other ends of 9,9 'are pivotally attached to the first movable seats 3,3' and the second movable seats 4,4 'so that the first arm 8,8' and the second arm 9,9 ' ′
Thus, the first movable seats 3, 3'and the second movable seats 4, 4'are supported.

The first arms 8 and 8'include a lower arm A and an upper arm B slidably fitted to the lower arm A. A pin C fixed to one of the lower arm A and the upper arm B is provided in a slot D provided in the other. By being fitted, it can be expanded and contracted relatively in the axial direction within the length range of the elongated hole D.

The first movable seats 3, 3'is rotatable with respect to the fixed seat 2, and the second movable seats 4, 4'are provided by a hinge structure as shown in (a) or (b) of FIG. 5, for example. Has a structure capable of rotating downward with respect to the first movable seats 3, 3 ', but not rotating upward.

When the second movable seats 4, 4'are horizontal, the front first movable seat 3, the second movable seat 4 and the rear first movable seats 3 ', 2'are the fixed seats 2. The front and rear geared motors 5 and 5 ', the screws 6 and 6', the sliders 7 and 7 ', the first arms 8 and 8', and the second arms 9 and 9'are the middle points of the fixed seat 2. Are arranged symmetrically with respect to a vertical line passing through.

10 is a pillow that is detachably attached to the second movable seat 4'in the rear, and 11 is an armrest, which is the fixed seat 2
Alternatively, it is supported by the base 1.

The operation will be described below with reference to FIG.

When the front slider 7 is located at the rear end of the screw 6, the first movable seat 3 supported by the first arm 8
Is in a horizontal state where it is almost flush with the fixed sheet 2,
The second movable seat 4 supported by the second arm 9 is the first
Angle θ below the leading edge of the movable sheet 3 (approximately 30 °
It holds the descending position in a row.

From this state, when the geared motor 5 rotates in the normal direction and the screw 6 rotates in the normal direction, the slider 7 is screw-fed and moves forward,
While the first movable seat 3 and the second movable seat 4 are respectively pushed upward by the arm 8 and the second arm 9,
The above-mentioned θ is gradually reduced to an intermediate position where the second movable sheet 3 is substantially horizontal.

When the geared motor 5 further rotates in the forward direction, the slider 7 is further fed by screw, the first movable seat 3 and the second movable seat 4 are further pushed up by the first arm 8 and the second arm 9, and θ becomes smaller and finally θ. = 0, and the first movable sheet 3 and the second movable sheet 4 are connected in the same plane.

Up to that point, due to the weight of the first movable seat 3, the pin C provided on the lower arm A of the first arm 8 remains engaged with the uppermost end of the elongated hole D provided in the upper arm B to support the first movable seat 3. However, when the slider 7 is further screwed forward and the second movable seat 4 is pushed up by the second arm 9, the second movable seat 4 moves to the first movable seat 4 as described above.
Since the structure is such that it cannot rotate upward with respect to the movable seat 3, the first movable seat 3 rotates upward together with the second movable seat 4 while extending the first arm 8, and the slider 7 moves. When the screw reaches the foremost end of the screw 6, the first and second movable seats 3 and 4 are flush with the fixed seat 2 and are stopped at an ascending position which is inclined upward by about 45 °.

When the slider 7'is screw-fed to the screw 6'by the forward rotation of the geared motor 5'and moves rearward from the front end, just like the operation of the first and second movable seats 3 and 4 on the front side, Rear first and second movable seats 3 ', 4'
Operates from the lowered position through the intermediate position to the raised position.

In the state where the first and second movable seats 3 ′ and 4 ′ on the rear side are in the raised position and the first and second movable seats 3 and 4 on the front side are in the lowered position, the fixed seat 2 is on the seating surface and the rear seat is on the rear side. Side first and second
Movable seats 3 ', 4'of the backrest, front first and second
The movable seats 3 and 4 are placed on the feet and become like an easy chair, the person sitting on it is very relaxed, and the heart is located quite above the fixed seat 2, so it is most suitable for component blood sampling. It will have a different posture.

From this state, the rear geared motor 5'is rotated in the reverse direction to move the slider 7'forward, and the front geared motor 5 is rotated in the forward direction to move the slider 7 forward to move the front first and second movable seats 3 , 4 and the first and second movable seats 3 ', 4'on the rear side are both located at an intermediate position or slightly lower than that, a state like a bed in which the heart part and the foot part are almost at the same height. Thus, for example, the posture becomes suitable when an anemia state occurs during blood collection.

Also, the front first and second movable seats 3 and 4 are in the raised position, and the rear first and second movable seats 3 ′ and 4 ′ are in the lowered position, and the pillow
When 10 is detached from the rear second movable seat 4'and attached to the front second movable seat 4, the front first and second movable seats 3 and 4 rest on the back, and the rear first and second movable seats 3 ′,
4'becomes an easy chair with a foot on it, and the choice between the easy chair state and the easy chair state in which the first and second movable seats 3 ', 4'on the rear side are the backrests is selected from either the left or right arm. It depends on what you do.

The stop of the geared motor at the movement stroke limit position of the sliders 7 and 7'is performed by a limit switch incorporated in the geared motors 5 and 5 ', but this is done by changing the limit position of the sliders 7 and 7'. The limit switch may be used for direct detection, and any other means may be adopted.

In the illustrated embodiment, the front and rear screws 6, 6'are independently rotated by the two geared motors 5, 5 ', so that the operation is performed by operating the operation switches of the two geared motors 5, 5'. Not only the state of the easy chair and the state of the bed, but also, for example, the rear first and second movable seats 3 ', 4'are set as the back position and the backrest is set, and the front first and second movable seats 3, 4 are set as the intermediate position. However, the front and rear screws 6, 6'are composed of a single screw and are driven forward and backward by a single geared motor. For example, the rear first The second movable seats 3 ', 4'are in the raised position (backrest state), and the front first and second movable seats
When the geared motor rotates in the forward direction from the position where 3 and 4 are in the lowered position (foot resting state), the front and rear sliders 7 and 7'are both screwed forward to the bed state, and when the geared motor further rotates in the forward direction, the first front , The second movable seats 3 and 4 are backrests,
The front and rear movable seats may be interlocked with each other such that the rear first and second movable seats 3'and 4'are put on the legs.

Further, the illustrated embodiment shows an example in which the first arms 8 and 8'can be expanded and contracted in the range of the elongated hole D, and by doing so, the first movable seat and the second movable seat are flush with each other. From this state, the first movable seat and the second movable seat can be rotated upward by the extendable stroke of the first arm 8 or 8'to reach the raised position with a preferable inclination angle as the backrest. Even if the first arms 8 and 8'have a simple arm structure that does not expand and contract, for example, the length relationship between the first arm and the second arm is appropriately set, or the screw 6,
6'is arranged with an appropriate inclination angle in the vertical direction,
Alternatively, the first arm and the second arm are provided with a means for offsetting the pivot points of the first arm and the second arm on the sliders 7 and 7 ', and the like, and the first and second movable seats are used as the backrests. In this case, the stopper mechanism for restraining the upward rotation of the second movable sheet as shown in FIG. 5 is unnecessary.

In the illustrated embodiment, the sliders 7, 7'are screw-fed by the rotation of the screws 6, 6 ', but the sliders 7, 7'
Attach a guide rail that guides the
A structure using a hydraulic drive mechanism such as a hydraulic cylinder device may be used as a drive source for moving the sliders 7, 7 '.

As described above, according to the present invention, the fixed seat supported by the base, the front and rear first movable seats attached to the front and rear edges of the fixed seat so as to be vertically rotatable, The front and rear second movable seats are attached to the front and rear edges of the front and rear first movable seats so as to be pivotable at least downward, and the guide members such as screws or guide rails mounted and supported on the base are moved in the front and rear direction. Front and rear sliders supported as much as possible, and first and second front and rear sliders each having one end axially attached to the front and rear sliders and the other end axially attached to the front and rear first movable seats and the post-war second movable seat, respectively. Arm and front and rear second
Since the blood collecting seat is composed of the arm and the drive mechanism such as the motor or the hydraulic device for controlling the front-rear movement of the front and rear sliders, only the rear-side first and second rear movements are performed only by the front-rear slider movement. The movable seat stands up at a predetermined angle to the fixed seat and becomes the backrest, and the first and second movable seats on the front side are lowered to put the feet on the chair. 2 A bed state in which the movable sheet is continuous with the fixed sheet in a state almost horizontal and is suitable for normal blood collection, and the first and second movable sheets on the front side serve as the backrests and the first and second movable sheets on the rear side are placed on the legs. Since it is possible to easily obtain the optimum state of the easy chair for blood sampling from the arm opposite to the above, the structure is simple and it can be made compact, so it can be mounted on a mobile blood collection vehicle. Suitable and made Combined with the fact that it is easy and the cost is low, it can bring great effects in practical use.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention, FIG. 1 is a side view,
2 is a plan view, FIG. 3 is a plan view of a drive mechanism portion, and FIG. 4 is a detailed side view of a support structure for the first movable seat and the second movable seat by the first arm and the second arm. Figure (a),
(B) is a side view showing an example of a hinge portion for connecting the first movable sheet and the second movable sheet, respectively. 1 ... base, 2 ... fixed seat, 3,3 '... first movable seat, 4,4' ... second movable seat, 5,5 '... geared motor, 6,6' ... screw, 7,7 '... Slider, 8,8' ...
… First arm, 9,9 ′ …… Second arm.

Continuation of front page (51) Int.Cl. ⁶ Identification code Office reference number FI technical display area A61G 15/04

Claims (4)

[Scope of utility model registration request] 1. A fixed seat horizontally mounted and supported on a base, front and rear first movable seats respectively mounted on the front and rear edges of the fixed seat so as to be vertically rotatable, and the front and rear seats. The front and rear second movable seats are rotatably attached to the front edge portion and the rear edge portion of the first movable seat at least downwardly, respectively, and the guide member mounted and supported on the base is movable in the front-rear direction. And the front and rear sliders supported in such a manner that one end portion is axially attached to the front and rear sliders and the other end portions are axially attached to the front and rear first movable seats and the front and rear second movable seats, respectively. A blood collection seat comprising a front and rear second arm and a drive mechanism for controlling the front and rear movements of the front and rear sliders. 2. A stopper mechanism is provided so that the front and rear second movable seats can rotate downward but not upward relative to the front and rear first movable seats, and the front and rear first arms have a predetermined length. The blood collection seat according to claim 1, wherein the blood collection seat is configured to be expandable / contractible within a certain range. 3. The guide member according to claim 1, wherein the guide member is a front and rear screw which is rotatably supported by the base and is rotationally driven by a geared motor which is a drive mechanism, and the front and rear sliders are the front and rear screws. A blood collecting seat, characterized in that it comprises an internal thread member that is screwed into each of the screws and is screw-fed in the front-rear direction by the rotation of the screw. 4. The blood collecting seat according to claim 3, wherein the front and rear screws are integrally formed and are rotationally driven by one geared motor.