JPH07265419A - Supplying device of liquid for medical treatment - Google Patents

Abstract

PURPOSE:To improve workability without the need for retransferring liquid for medical treatment housed in a deformable container, such as plastic bottle, into another container and without the need for installing the container at a high position at the time of supplying the liquid to a patient. CONSTITUTION:This supplying device has a pair of pressing members 20 having a flat plate shape. A driving means 30 for these pressing members 20 has a pair of gears 31 meshing with each other, a motor 34 for rotating the one gear, a pair of arms 35 fixed at the bottom ends to a pair of the gears 31 and rollers 36 disposed rotatably at the top end of a pair of the arms 35. A pair of the rollers 36 press a pair of the pressing members 20 in a direction where both members are brought near to each other when a pair of the arms 35 are turned in a closing direction by rotation of the motor 34. As a result, the plastic bottle 100 installed between a pair of the pressing members 20 is mechanically crushed and the liquid for medical treatment therein is ejected.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a medical fluid such as a sterilizing solution used for disinfecting an affected area in a surgical operation such as cholecystectomy, a nutritional supplement used for drip infusion, a physiological saline solution used for various treatments. The present invention relates to a device that can easily supply water.

[0002]

2. Description of the Related Art Conventionally, as this kind of medical liquid supply apparatus, one having a structure shown in FIGS. 4 and 5 has been known. The medical liquid supply apparatus shown in FIG. 4 has a stand 2 extending vertically. At the upper end of the stand 2, a plastic bottle 1 (deformable container) in which a medical liquid is stored is suspended with the opening 1a facing downward, and a rubber stopper 1b that closes the opening 1a is hung. The needle 3a connected to the tip of the medical liquid transport tube 3 is inserted. Then, the potential energy of the plastic bottle 1 is used to supply the medical liquid to the patient located below.

The medical liquid supply apparatus shown in FIG. 5 has a rigid storage container 5 made of glass, for example, and an air pump 6. The upper opening 5a of the storage container 5 is closed by a removable rubber stopper 5b, and the medical liquid transferred from the plastic bottle 1 is stored therein. By supplying compressed air from the air pump 6 to the upper space of the storage container 5 via the air supply pipe 7, the medical liquid in the storage container 5 is supplied to the patient via the transportation pipe 8.

[0004]

In the medical liquid supply apparatus shown in FIG. 4, when the hanging position of the plastic bottle 1 is higher than the height of a worker such as a nurse, the hanging work is troublesome. There was a problem that it took time. Also, FIG.
In the medical liquid supply device shown in (1), the medical liquid stored in the plastic bottle 1 cannot be used as it is, and the medical liquid in the plastic bottle 1 is temporarily transferred to another storage container 5 and stored therein. Therefore, the laborious work of sterilizing the storage container 5 is required prior to the work of transferring the medical liquid.

[0005]

[Means for Solving the Problems] In order to solve the above problems,

[0006]

According to the first aspect of the invention, at least one of the pressing members is moved to compress the container sandwiched by the pair of pressing members, and the medical liquid in the container is pushed out. The medical liquid can be directly supplied to the patient through a transportation means such as a tube, and the work of suspending the container at a high position unlike the conventional example of FIG. 4 is unnecessary. Further, unlike the conventional example of FIG. 5, since the medical liquid in the container is not transferred to another storage container, the labor of sterilizing this storage container can be saved.

According to the second aspect of the present invention, the pair of pressing members are simultaneously moved to compress the container, so that the container can be crushed without moving. Moreover, since the center of rotation of the pressing member is pushed by the roller, the pressing member is tilted according to how the container is deformed, and as a result, the pair of pressing members are attached to the container without applying an excessive force to the container. The container can be satisfactorily pressed and crushed while closely contacting, and the medical liquid can be smoothly supplied. Further, since the pair of pressing members have a flat plate shape and finally come into contact with each other with the crushed container sandwiched therebetween, the medical liquid in the container can be almost extruded. According to the third aspect of the invention, by using the pair of gears, the pair of arms, and the pair of rollers, the pair of pressing members can be simultaneously moved by one motor in the direction of approaching each other, and the configuration is simple. .

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. In FIG. 1, reference numeral 10 indicates a base as a supporting means. This base 10 is a horizontal bottom plate 1.
1, a pair of side plates 12 standing vertically from the bottom plate 11 and parallel to each other, and a horizontal support plate 13 fixed between the central portions of the pair of side plates 12.
A hole 13a is formed in the center of the support plate 13.
A support cylinder 14 extending upward is fixed to the upper surface of the support plate 13.

On the other hand, a pair of pressing members 20 are supported on the side plate 12 of the base 10 so as to be rotatable and horizontally movable. More specifically, the pair of side plates 12 are each formed with a slit 12a having the same height and extending horizontally. Each pressing member 20 is formed of a rectangular flat plate and is arranged between the pair of side plates 12. Shafts 20a are screwed into the central portions of both side edges of each pressing member 20. Each pressing member 20
The pair of shafts 20a are inserted into the pair of slits 12a, whereby the pressing member 20 is supported so as to be rotatable and horizontally movable. The pressing member 20 is arranged above the support cylinder 14 so as not to interfere with the support cylinder 14.

Next, the driving means 30 for bringing the pair of pressing members 20 close to each other will be described. The driving means 30 has a pair of gears 31 (first and second gears) which are arranged between the pair of side plates 12 and mesh with each other. Each gear 31 is rotatably supported by the side plate 12 via a shaft 31a. The shaft 31a of the right gear 31 (first gear) in FIGS. 1 and 3 is connected to a motor 34 via a speed reducer 33. The pair of gears 31
The lower ends of the pair of arms 35 are fixed to the respective. A pair of rollers 36 are rotatably supported on the upper ends of the arms 35.

In the above structure, the upper end of the support cylinder 14 is supported so that the shoulder of the plastic bottle 100 (deformable container) in an inverted state is placed. The plastic bottle 100 is arranged between the pair of pressing members 20. The needle 3a pierces the rubber cap 100b that closes the opening 100a of the plastic bottle 100.
The tube 3 is connected to the lower end of the needle 3a. The tube 3 passes through the hole 13a in the support plate 13 and extends to the patient.

When the plastic bottle 100 is supported, by rotating the motor 34 in the normal direction, as shown in FIG.
Rotate the gear 31 on the right side in FIG. 3 counterclockwise,
By rotating the left gear 31 clockwise, the pair of arms 35 are rotated so as to approach each other, and with the pair of rollers 36 supported on the upper ends of these arms 35,
The pressing members 20 are pressed in a direction of approaching each other. as a result,
The plastic bottle 100 is crushed and crushed by the pair of pressing members 20. In the process of being crushed, the medical liquid contained in the plastic bottle 100 is transferred to the tube 3
Directly to the patient via. In this case, since the medical liquid is not separately transferred to another storage container as in the conventional case, it is possible to save the trouble of sterilizing the storage container. Further, since the medical liquid is supplied by mechanical force without depending on gravity, it is not necessary to install the plastic bottle 100 at a high place, and the plastic bottle 100 can be pushed out with a relatively high pressure.

Since the pressing member 20 simultaneously moves to compress the plastic bottle 100, the plastic bottle 100 is crushed without moving. Therefore, the support state of the plastic bottle by the support cylinder 14 is maintained in a good condition. Moreover, since the pressing member 100 has a flat plate shape, the crushed plastic bottle 100 is finally sandwiched and brought into contact with each other, and the medical liquid can be extruded from the plastic bottle 100 with almost no waste. . Since the pair of pressing members 20 are rotatable, and the center of rotation is pressed by the roller 36 having an outer peripheral surface having a cylindrical surface shape, the pressing members 20 are inclined depending on how the plastic bottle 100 is deformed, and as a result, The plastic bottle 100 can be pressed and crushed while the pair of pressing members 20 are in close contact with the plastic bottle 100 without applying an excessive force to the plastic bottle 100, and the medical liquid can be smoothly supplied.

When the medical liquid is completely supplied and the plastic bottle 100 becomes empty, the motor 34 is rotated in the reverse direction, the pair of arms 35 are expanded, and the rollers 36 are moved in the directions in which they are separated from each other. Thereby, the pressing member 2
The pressing state of the plastic bottle 100 by 0 is released. The operator removes the plastic bottle 18 between the pressing members 20, and then sets a new plastic bottle 18 between the pressing members 20.

The present invention is not limited to the above-mentioned embodiment and various modes are possible. For example, one pressing member is fixed to a horizontal base in an upright state, and the other pressing member is slidably supported on the base in an upright state, and only the other pressing member is moved by the drive means. You may allow it.
In this case, the plastic bottle is placed on the base so as to be in contact with the one pressing member, and the other pressing member is moved toward the one pressing member to crush the plastic bottle. In this case, the driving means may include a mechanism for converting the motor rotation into a linear movement,
It may include an air cylinder.

The pressing member need not have a flat plate shape, and may be, for example, a roller having a large diameter. The plastic bottle may be supported with the opening up rather than upside down. Further, as the deformable container, a plastic bag may be used instead of the plastic bottle.

[0017]

As is apparent from the above description, according to the first aspect of the invention, the medical liquid is directly supplied to the patient by crushing the container deformable by mechanical force. Therefore, it is possible to save the labor of installing this container at a high position, and the labor of sterilizing this storage container because the medical liquid in the container is not transferred to another storage container. As a result, workability can be improved. According to the second aspect of the present invention, by moving the pressing member having a flat plate shape at the same time, the medical liquid can be pushed out of the container without moving the container. Further, by pressing the rotation center of the pressing member with the roller, the container can be crushed and crushed while the deformed state of the container can be dealt with, and the medical liquid can be smoothly supplied. According to the invention of claim 3, the structure is simple and the manufacturing cost can be reduced.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a medical liquid supply apparatus according to the present invention.

FIG. 2 is a view of FIG. 1 viewed from a direction of an arrow II and is shown in a partial cross section.

FIG. 3 is a view of FIG. 1 viewed from a direction of an arrow III.

FIG. 4 is a schematic view showing a conventional medical solution supply device.

FIG. 5 is a schematic view showing another conventional medical solution supply device.

[Explanation of symbols]

 10 Base (Supporting Means) 20 Pressing Member 30 Driving Means 31 Gears (First and Second Gears) 34 Motor 35 Arm 36 Roller 100 Plastic Bottle

Claims (3)

[Claims] 1. A medical liquid supply device for supplying a medical liquid from a deformable container to the outside, comprising: (a) a pair of pressing members; and (b) at least one pressing member that is moved to both sides. A device for supplying a medical liquid, comprising: a driving unit that compresses the container arranged between the pressing members by bringing the pressing members closer to each other. 2. A support means for supporting substantially the center of the pair of pressing members so as to be rotatable and horizontally movable, and for supporting the container between the pressing members, wherein the pair of pressing members comprises: 2. The medical liquid supply apparatus according to claim 1, wherein each of the driving means has a flat plate shape, and the driving means includes a pair of rollers that simultaneously press the rotation centers of the pair of pressing members. 3. The drive means includes one motor, a first gear rotatably supported by the support means and rotated by the motor, and rotatably supported by the support means. A second gear that meshes with one gear; a pair of arms, one end of which is fixed to the pair of gears; and a pair of rollers that are rotatably supported at the other ends of these arms. The liquid supply apparatus for medical use according to claim 2, wherein the pair of pressing members are pushed by the pair of rollers by rotating the pair of arms in a direction of approaching each other via the pair of gears.