JP3007285B2 - Liquid waste treatment equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for aspirating liquid waste, for example, blood and other body fluids that need to be disposed of at a medical site, or physiological saline used for cleaning an affected part. , A processing apparatus for coagulating and discarding.

[0002]

2. Description of the Related Art Wastes such as blood and physiological saline which need to be discarded at a medical site, particularly when performing a surgical operation, are collected in a container by a suction machine and disposed of by incineration. However, such waste may contain harmful bacteria, etc.If the container or bag is damaged or if liquid waste is sucked in more than the capacity of the collection bag, the waste will be lost. It may leak to the outside and cause secondary infection to healthcare workers, inpatients, etc. If the liquid is sucked excessively and flows into the air pump, the air pump may fail.

In order to prevent this accident, do not discard the normally sucked liquid waste using the water-absorbing high-molecular polymer disposed in the collection bag and then discard it, or do not suction more than a certain amount. Equipment.

[0004] As a method of arranging a water-absorbing material for coagulating liquid waste in a collection bag, a water-impermeable sheet and a water-absorbent sheet are attached to each other, and the collection bag is formed so that the water-absorbent sheet is on the inner side. What to drop the water-absorbing material prepared after sucking the liquid waste into the collection bag,
In addition, there is a method in which a water-absorbing material is fixed to the bottom of the collection bag.

[0005] Further, as a device for preventing the liquid waste from being excessively sucked, a float having a rod at an exhaust port is usually prepared so that the rod closes the exhaust port as the water level rises. .

[0006]

However, a processing apparatus constructed by laminating a water-impermeable sheet and a water-absorbing sheet has a multi-layer structure, so that the inside becomes invisible and hard to fold, and is stored and transported. Had inconvenience. Also, in a processing device that prepares a water-absorbing material that is dropped after sucking liquid waste into a collection bag, coagulation does not occur until the water-absorbing material is dropped, so there is still anxiety when the product is overturned during work. Further, it was not possible to perform additional suction after coagulation. Further, in the processing apparatus in which the water-absorbing material is fixed to the bottom of the collection bag, there is a problem that the solidification rate decreases as the suction of the liquid waste proceeds.

Accordingly, an object of the present invention is to provide an apparatus for treating liquid waste in which a container and a collection bag are separate, in which the content can be easily recognized, the liquid can be gelled more quickly, and the liquid can be formed without providing a new mechanism. It is an object of the present invention to provide an apparatus for treating liquid waste that prevents excessive suction of waste.

[0008]

According to the present invention, there is provided an apparatus for treating liquid waste, comprising: a treatment unit for storing suctioned liquid waste; and a container for detachably holding the treatment unit inside. The processing unit, wherein the processing unit includes a collection bag that stores the liquid waste, an exhaust port that can be in close contact with an opening of the container and discharges air, and a suction port that suctions the liquid waste. And a float having a specific gravity of 1 or less and holding a water-absorbing material in a holding container opened downward, which is provided at the bottom of the processing unit.

In the liquid waste treatment apparatus, a coupling structure may be provided between an exhaust port provided in the lid and an upper surface of the float, and the coupling structure may be provided when the float floats to the top of the processing unit. Wherein the float upper surface closes the exhaust port.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of the present invention will be described in detail with reference to the drawings. The present embodiment relates to a medical liquid waste treatment apparatus, in which blood to be discarded during surgery and treatment and physiological saline for washing are sucked into the treatment unit and incinerated together with the treatment unit. To be disposed of. FIG. 1 is an exploded perspective view of a liquid waste processing apparatus according to the present embodiment, FIG. 2 is an external side view of the liquid waste processing apparatus, FIG. 3 is a partial cross-sectional view of the liquid waste processing apparatus, and FIG. 5 is a perspective view showing the configuration of the float, FIG. 5 is a perspective view showing the folded state of the processing unit, FIG. 6 is a view for explaining the operation when the processing unit is used, and FIG. 7 is a perspective view showing a disposal method after using the processing unit. FIG.

As shown in FIG. 1, a processing apparatus 1 includes a processing unit 2 for storing liquid waste, a bottle 3 that is a container for accommodating the processing unit 2, and a processing unit 1 mounted outside the bottle 3.
And a holder 4 for holding the processing apparatus 1.

As shown in FIGS. 2 and 3, when the processing unit 2 is inserted into the bottle 3, the lid 22 contacts the periphery of the opening of the bottle 3, and the bottom plate 23 of the collection bag 21 is connected to the bottle. 3
Contact the inner bottom of Then, by fixing the lid 22 of the processing unit 2 to the bottle 3 using the fixing hook 44 of the holder 4, the processing unit 2, the bottle 3, and the holder 4 are integrally fixed, and the bottle 3 is sealed by the lid 22.

The bottle 3 is a transparent cylindrical plastic container having a scale 31 on its surface to indicate the capacity. Further, the lid 22 of the processing unit 2 is fitted into the upper end of the opening at the upper part of the bottle 3, and is fixed airtight by the fixing hook 44 of the holder 4.

The holder 4 is formed by integrally molding a handle 43 and a bracket 43 for fixing the processing apparatus 1 to a wall, a rack, or the like, with a ring-shaped body 41 to be fitted into and fixed to the upper part of the bottle 3. Further, the annular body 41 has a fixing hook 44 for fixing the processing unit 2 to the bottle 3.

The processing unit 2 is formed by integrally welding a circular plastic lid 22 to the opening of a collection bag 21 made of low-density polyethylene. Further, a bottom plate 23 made of plastic or paper is attached to the bottom of the collection bag 21. The outer shape of the bottom plate 23 is configured to match the inner bottom of the bottle 3. The float 5 is placed on the bottom plate 23 in the processing unit 2.

The lid 22 has an exhaust port 24 for discharging air from inside the collection bag 21 and a suction hole 25 for sucking liquid waste into the collection bag 21. L-shaped joints 11 and 12 are attached to the exhaust port 24 and the suction port 25 in an airtight and detachable manner using a gasket, respectively. Sucking patient hose 1
3, and the primary hose 14 connected to the air pump is attached. In addition, the lid 22 is used to easily remove the processing unit 2 in which the liquid waste 6 has accumulated from the bottle.
A handle 26 is attached.

The gas passage inside the joint 12 at the exhaust port is divided into two parts, a first series passage 24a for sucking the gas from the inside of the processing unit 2, and the gas from the gap between the processing unit 2 and the bottle 3. It comprises a second communication passage 24b for suction.
That is, according to this structure, the gas is sucked from the processing unit 2 and at the same time from the gap between the processing unit 2 and the bottle 3. Even if the second collection bag 21 is formed of a flexible sheet, suction can be performed without contraction.

At the end 27 of the exhaust port 24 inside the collection bag 21, a connecting portion 28 is formed which extends downward like a funnel. A stop valve filter 29 is adhered to the inside of the connecting portion. The connecting portion 28 is formed as a pair with a connecting guide 51c of the float 5 to be described later, and forms a connecting structure for connecting the end portion 27 of the exhaust port to the float 5, and the float 5 rises to the top end of the processing unit 2. When floating, the connecting portion 28 and the connecting guide 51c come into close contact with the suction force of the exhaust gas, and stop the suction of the liquid waste 6.

The stop valve filter 29 is a porous body obtained by sintering a polymer, and is formed by blending a water-absorbing polymer and an antibacterial agent into a molding material at the time of molding and performing foam molding. Since this stop valve filter 29 is a porous body, it normally allows gas to pass through as a filter,
Antibacterial agent suppresses bacteria contained in exhaust gas. On the other hand, when the liquid waste 6 comes into contact with the stop valve filter 29, the contained water-absorbing polymer expands by absorbing water, blocking the pores of the porous body and preventing the passage of the liquid waste. Thereby, even if the processing apparatus is turned over, there is no fear that the liquid waste 6 leaks.

The float 5 is placed on the bottom 23 of the processing unit 2.
Is placed. The float 5 is configured so that its specific gravity becomes 1 or less, and when the liquid waste 6 flows into the processing unit 2, it always floats and is located at the gas-liquid interface.

The holding container 51 of the float 5 is formed of polypropylene, and has a shape in which a cup is closed as shown in FIG. The outer diameter of the float 5 is formed smaller than the inner diameter of the collection bag 21, and the sucked liquid waste can pass around the float 5 through this gap. A connection guide 51c is provided on the upper surface of the float 5, and is formed in a pair with the connection portion 28 of the exhaust port, and is configured to close the exhaust port by abutting.

A step 51a is formed at an edge of the inner surface of the holding container 51, and a projection 51b is provided on the step 51a. The inside of the holding container 51 of the float 5 is filled with the water-absorbing material 52 up to the step 51a, and the water-absorbing material 52 is fixed by covering the step 51a with a water-soluble film 53.
The water-soluble film 53 is fixed by fitting a film fixing ring 54 to the film. In addition, the film fixing ring
A cut is formed in the outer periphery of the entire circumference of the 54, and the protrusion 51b of the holding container fits into the cut so as to fit.

Next, the use procedure and operation of the liquid waste processing apparatus 1 will be described with reference to FIGS. As shown in FIG. 5, the processing unit 2 has a lid before use.
The bag portion of the collection bag 21 is folded so that the 22 and the bottom plate 23 are aligned, and are stored and transported by, for example, sealing in a vinyl packaging container. At this time, the handle 26 can be folded down on both sides of the lid 22, and the joints 12 and 13 to each hose can also be removed. Therefore, the handle 26 becomes extremely compact, and can be stored and transported in a small space.

In use, the bottom plate 23 is separated from the lid 22, the collection bag 21 is stretched, and the collection bag 21 is inserted into the bottle 3, so that it can be easily mounted on the processing apparatus 1. At this time, if the bottom plate 23 is configured to have a predetermined weight, the collection bag 21 can be stretched without wrinkles due to the weight of the bottom plate 23.

As shown in FIG. 6A, the float 5 is located at the bottom of the processing unit 2 before starting suction.
When the liquid waste 6 starts to be sucked into the collection bag 21, the liquid waste 6 reaches the lower side of the float 5 through the gap between the collection bag 21 of the processing unit 2 and the holding container 51 of the float 5.

Then, as shown in FIG.
Since the specific gravity is 1 or less, the water-soluble film 53 on the lower surface of the float 5 dissolves while floating at the gas-liquid interface, and the water-absorbing material is diffused to gel the liquid waste. In addition, even when the suction of the liquid waste 6 proceeds, the float 5 is always present at the gas-liquid interface, and the water-absorbing material can be effectively diffused and gelled in the liquid waste 6 sucked later. . Also, since the float 5 is always at the gas-liquid interface,
The amount of sucked liquid waste can be easily visually recognized, and can also function as a level gauge.
For this reason, it is more preferable to form the holding container 51 of the float 5 from a material having a conspicuous color such as red or fluorescent color.

As shown in FIG. 6C, as the suction operation proceeds, the float 5 rises to the top of the processing unit,
The connection guide 51c at the top of the float 5 and the connection 28 at the exhaust port
Abuts. Then, the connecting portion 28,
The connection guide 51c comes into close contact, the exhaust passage is closed,
No negative pressure is applied in the processing unit 2. Therefore, the suction of the liquid waste 6 is stopped, and there is no possibility that the air pump is broken due to excessive suction.

As shown in FIG. 7, when the processing unit 2 is removed from the bottle 3 after use, the exhaust port 24, the suction port 25
Cover caps 15 and 16, respectively.
Is closed, the fixing hook 44 of the holder 4 is released, and the cover is easily separated by pulling up using the handle 26 of the lid 22.
Can be discarded. The used processing unit 2 is incinerated as it is. At this time, in a state where the liquid waste 6 has solidified, the processing unit 2 can be handled stand-alone by the function of the bottom plate 23.

FIG. 8 shows a second embodiment of the apparatus for treating liquid waste according to the present invention. The same parts as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

In this embodiment, the end of the suction port 73 inside the processing unit 2 is bent toward the wall surface of the collection bag 21 of the processing unit 2, and the sucked liquid waste 6 is caused to flow along the wall surface. It is configured to suppress disturbance of the liquid level.

Also, the end of the exhaust port inside the processing unit 2
27 is formed in a cylindrical shape, and a rubber suction cup 72 is joined to the outer periphery of the end portion 27. The end portion 27 and the suction cup 72 are fitted with a recess provided over the entire circumference at the edge of the outer surface of the end section 27 and a projection provided over the entire circumference on the inner surface of the upper cylinder of the suction cup 72. Are joined by As in the first embodiment, a stop valve filter 29 is adhered to the inside of the end portion 27, so that the liquid waste 6 is reliably prevented from flowing out of the container.

The holding container 71 of the float 7 has a cylindrical shape with its upper surface closed, and its lower surface is open. Example 1
In the float 5 of this embodiment, a raised portion is provided on the upper surface as a connection guide 51c.
Is formed only in a plane.

When the liquid waste 6 is sucked, the float 7 diffuses the water-absorbing material 52 while floating at the gas-liquid interface to gel the liquid waste 6. When the float 7 reaches the top end of the processing unit 2, the suction cup 72 at the end 27 of the exhaust port adsorbs on the upper surface of the float 7 with the suction force of the exhaust gas, and closes the exhaust passage. Since the liquid waste needs to pass below the float 7, a gap is formed between the float 7 and the processing unit 2 as described above, and the float 7 moves in the horizontal direction. Since it can be adsorbed to any part of the upper surface, the exhaust port can be reliably closed.

In the above embodiment, the holding container is made of polypropylene, but the material is not limited as long as the specific gravity is 1 or less. In addition, the shape of the holding container is a shape in which a cup is closed, but the present invention is not limited to this, and a cylinder having a top surface or a polygonal tube, or a ring-shaped floating center is used to absorb water by an arm. Any material that holds the material, that is, one that is open at the bottom may be used. It is also preferable that the holding container has an air vent hole or notch so that air does not collect.

Although a water-soluble film is used to hold the water-absorbing material in the holding container, other means for holding the water-absorbing material may be used, such as a filler that is dissolved by water. Various means are conceivable, such as, for example, holding by non-woven paper or non-woven fabric which is decomposed by water.

In the above embodiment, the connection portion 28 of the exhaust port
The stop valve filter provided in the is not something that must be used with the float according to the present invention, by providing alone in the conventional liquid waste treatment device,
The liquid waste can be prevented from leaking due to excessive suction or falling. Although the stop valve filter is provided inside the processing unit, it may be provided outside the processing unit or in the middle of a primary hose connected to an air pump.

The stop valve filter was formed by sintering a polymer and foam-molding it. Alternatively, the stop valve filter may be formed by wrapping a water-absorbing polymer with cotton mixed with pulp, polypropylene, polyethylene, or the like, and heating and compressing the polymer. It may be something. At this time, it is preferable to protect the filter surface with a nylon mesh or the like with respect to the air flow path so that the fibers constituting the cotton are not scattered.

[0038]

According to the liquid waste treatment apparatus of the present invention, the float holding the water-absorbing material is configured to have a specific gravity of 1 or less, so that when the liquid waste is sucked into the treatment unit, the float is always kept. It will be located at the gas-liquid interface. As a result, the water-absorbing material can be constantly diffused into the newly sucked liquid waste, and gelation can be performed quickly and effectively. Further, even when the suction is once stopped and then the suction is performed again, the gelation can be rapidly advanced. In addition, a function as a level gauge indicating the internal capacity can be provided. Further, the manufacturing cost is low due to the simple structure.

Also, by providing a coupling structure between the upper surface of the float and the exhaust port, the upper surface of the float closes the exhaust port when the float reaches the top end of the processing unit.
Exhaust suction can be stopped without excessive suction progress, and liquid waste does not leak to the air pump side. Therefore, it is possible to prevent the failure of the air pump and to prevent the bacteria contained in the liquid waste from leaking.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a liquid waste treatment apparatus according to an embodiment.

FIG. 2 is an external side view of the liquid waste processing apparatus.

FIG. 3 is a partial cross-sectional view of a liquid waste treatment apparatus.

FIG. 4 is a configuration diagram of a float.

FIG. 5 is a perspective view showing a folded state of the processing unit.

FIG. 6 is a diagram illustrating an operation when a processing device is used.

FIG. 7 is a perspective view showing a disposal method after using the processing unit.

FIG. 8 is a diagram illustrating a float according to a second embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Processing apparatus, 2 ... Processing unit, 3 ... Bottle, 4 ... Holder, 5 ... Float, 6 ... Liquid waste, 7 ... Float,
21 ... collection bag, 22 ... lid, 23 ... bottom plate, 24 ... exhaust port, 25 ... suction port, 27 ... exhaust port end, 28 ... connecting part, 29 ... stop valve filter, 51 ... holding vessel, 51c ... connecting guide 52, water-absorbing material, 53, water-soluble film, 54, film fixing ring, 71, holding container, 72, suction cup, 73, suction port

────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Masao Takahashi 222-1, Naganuma-cho, Isesaki-shi, Gunma Inside of Gunma Koike Co., Ltd. (72) Inventor Nobuo Murata 1-19-16-1 Hisa, Koto-ku, Tokyo No. 709 (72) Inventor Masanori Suzuki 2-23-15-2Chuo 2-chome, Ueda City, Nagano Prefecture (72) Inventor Isao Takimoto 2-15-4 Higashi Tanabe, Higashi Sumiyoshi-ku, Osaka City, Osaka (56) References JP-A-8-112344 (JP, A) JP-A-9-28744 (JP, A) JP-A-48-99988 (JP, A) JP-A-62-113554 (JP, U) Patent 2913217 (JP, B2) ) Patent 2905327 (JP, B2) JP 5-85441 (JP, B2) JP 4-60713 (JP, B2) JP 3-12899 (JP, B2) Jiko 64-6826 (JP, B2) Y2) (58) Fields investigated (Int. Cl. ⁷ , DB name) A61M 1/00 A61G 12/00 A61L 11/00

Claims (3)

(57) [Claims] An apparatus for treating liquid waste, comprising: a treatment unit for storing sucked liquid waste; and a container holding the treatment unit detachably inside, wherein the treatment unit stores the liquid waste. Collection bag,
A lid having an exhaust port that can be in close contact with the opening of the container and discharges air to the outside, and a suction port that sucks the liquid waste; An apparatus for treating liquid waste, wherein a float holding a material and having a specific gravity of 1 or less is disposed at the bottom of the treatment unit. 2. A combination structure is provided between an exhaust port provided in the lid and an upper surface of the float, and when the float floats to the top end of the processing unit, the upper surface of the float is connected to the exhaust port by the coupling structure. The liquid waste treatment apparatus according to claim 1, wherein the apparatus is closed. 3. The liquid waste processing apparatus according to claim 1, wherein the float has an opening of a holding container for the float covered with a water-soluble film.