JP7144240B2 - Pathological examination workbench, pathological examination system examination table and examination method - Google Patents

Description

The present invention relates to a pathological examination workbench, a pathological examination system examination table, and an examination method.

In the pathological examination room, microscopic specimens are prepared from organs, tissues, cells, etc. collected for the purpose of surgery or examination, and detailed diagnoses are performed using a microscope or the like. Pathological examinations use organic chemicals such as formalin (aqueous formaldehyde solution) and xylene. Regarding such organic chemical substances, the Ordinance on Prevention of Hazards due to Specified Chemical Substances sets the control concentration of formaldehyde indoors at 0.1 ppm.
Therefore, it is desirable that the workbench for pathological examination has a function of suppressing the diffusion of organic chemicals. For example, Patent Document 1 discloses a first air supply unit that supplies gas from the front side of the sink toward the back side, and a second air supply unit that supplies gas obliquely from above the back side of the sink toward the front side of the sink. A sink is disclosed in which an air curtain is formed above the sink by two air supply means and an exhaust means for exhausting air from the back side of the sink to prevent volatile substances in the sink from diffusing.
Further, Patent Document 2 discloses a sink that prevents volatile substances in the sink from diffusing by sucking and exhausting the gas in the sink from a suction port provided in the lower side of the sink.

JP-A-08-001124 JP 2018-004189 A

Volatilized organic chemicals, such as formaldehyde, are heavier than air and tend to stay in the sink. Even if the exhaust is exhausted from the side of the sink or shielded by an air curtain, etc., if work is performed inside the sink where organic chemicals have accumulated, the gas inside the sink may be agitated, or the gas may be extracted from the sink. Organic chemicals in the sink may leak to the outside along with medical staff's arms and specimens.
SUMMARY OF THE INVENTION An object of the present invention is to solve the above problems. An object of the present invention is to propose an inspection method using a system inspection table.

The invention according to claim 1 is a pathological examination comprising a sink, a receiving tank provided under the sink, a drain pipe connected to the bottom surface of the receiving tank, and an exhaust pipe connected to the side surface of the receiving tank. It is a working table. The receiving tank is connected to the bottom surface of the sink so that liquid and gas can flow down, and gas that is heavier than the atmosphere flows down to the receiving tank and is exhausted from the receiving tank through the exhaust pipe.
Further, the invention according to claim 2 is a system examination table for pathological examination in which a plurality of work tables for different purposes are arranged side by side. The system examination table for pathological examination includes a hood that covers the upper side of the worktable, a horizontal plate that divides the space in the hood into an upper space and a lower space, and a gap from the inner wall on the back side of the worktable. and a vertical plate disposed thereon.
The hood is cantilevered on the back side of the workbench or suspended above the workbench, and there is no means for supporting the hood on the front side of the workbench. Therefore, the inspection target can be moved from one work table to the next without taking it out. By laterally moving the specimen without taking it out, it is possible to prevent the leakage of organic chemical substances and the like.
At least some of the plurality of workbenches include a sink, a receiving tank connected to the bottom surface of the sink, and an exhaust pipe connected to the receiving tank. and the vertical plate is provided with an exhaust louver, the exhaust pipe is connected to an exhaust hole formed in the vertical plate, and the gap between the vertical plate and the inner wall is the upper It is connected to a space, and an exhaust duct is connected to the upper space. Therefore, the organic chemical substance is exhausted through the exhaust duct, thereby preventing the organic chemical substance from diffusing into the pathological examination room.
Further, in the system examination table for pathological examination according to claim 3, since an exhaust port is formed in the vertical plate facing the space under the work table, if by any chance an organic compound is discharged under the work table, Even if the quality leaks out, it can be prevented from spreading in the pathology laboratory.
Furthermore, the invention according to claim 4 is an examination method using the system examination table for pathological examination according to claim 2 or claim 3, wherein at one of the plurality of work tables, By laterally moving the used sample to another work table without taking it out from the system examination table for pathological examination, leakage of gas from the inside of the system examination table for pathological examination is prevented.

According to the pathological examination workbench and the pathological examination system examination table of the present invention, the gas heavier than the atmosphere is guided to the receiving tank provided under the sink, so that it does not stay in the sink. Therefore, it is possible to prevent organic chemicals from leaking out from the sink. It also prevents the backflow of odors from the liquid that has accumulated in the trap under the sink.
Further, according to the pathological examination system workbench of the present invention and the examination method using the same, since there is no supporting means such as a mullion on the hood on the front side of the workbench, specimens and the like are moved between the workbench. There is no need to withdraw the specimen at this time. Therefore, it is possible to prevent the organic chemical substance from leaking to the outside together with the specimen.

It is a top view which shows the pathological examination room of this embodiment. FIG. 2 is a perspective view showing a part of the system examination table for pathological examination; FIG. 2 is a cross-sectional view showing a workbench for pathological examination;

In the embodiment of the present invention, a pathological examination system examination table 1 provided in a pathological examination room R of a medical facility will be described. In the pathological examination room R of the present embodiment, as shown in FIG. 1, a system examination table 1 for pathological examination is provided. A pathological examination system examination table 1 includes a plurality of pathological examination work tables 2 for different purposes. In this embodiment, the pathological examination system examination table 1 is constructed together with the building as ancillary equipment of the building, thereby forming a pathological examination room R that is superior in workability and safety. The system examination table 1 for pathological examination employs a push-pull method that enables lateral movement of the sample between the work tables 2 for pathological examination. By doing so, organic chemicals such as formalin and xylene used in the specimen are prevented from leaking out of the apparatus (pathological examination system examination table 1).
The pathological examination system examination table 1 of the present embodiment includes a work table 2a, a sink 2b, an imaging table, a cutting table, a liquid waste table, and the like as a pathological examination work table 2. FIG. That is, the pathological examination system examination table 1 includes a plurality of work tables (pathological examination work tables 2) arranged side by side for different purposes. The pathological examination system examination table 1 also includes a paraffin embedding device, an organ storage, and the like. The number and types of the pathological examination work tables 2 included in the pathological examination system examination table 1, as well as other facilities and devices, are not limited.

As shown in FIG. 3, on the back side of the pathological examination workbench 2, a vertical plate 3 is provided with a gap from the inner wall W (the wall of the pathological examination room R). Furthermore, the top of each workbench 2 for pathological examination is covered with a hood 4 .
The hood 4 is cantilevered by the inner wall W. That is, the hood 4 protrudes from the upper back side of the pathological examination workbench 2, and on the near side of the pathological examination workbench 2 (on the side opposite to the inner wall W), there are supports for supporting the hood 4. No support wall or the like is provided under the hood 4. The hood 4 may be suspended from the ceiling, beams, or the like above the pathological examination workbench 2 . The hood 4 includes a hood body 41 and an elevating sash 42 provided on the front side of the hood body 41 .
The hood body 41 includes a top plate 43 extending from the inner wall W, a front plate 44 extending downward from the front end of the top plate 43, and side plates 45 (see FIG. 2) covering the side surfaces. That is, the hood body 41 covers the upper surface, front surface and both side surfaces of the space above the pathological examination work table 2 . Note that the top plate 43 may be provided as required. That is, the top plate 43 may be omitted as long as the gap with the ceiling can be shielded. Moreover, the side plate 45 may be omitted except for the hood 4 above the pathological examination work table 2 disposed at the end of the pathological examination system examination table 1 . The front plate 44 of this embodiment is inclined with respect to the vertical plane so as to separate from the inner wall W as it goes downward. Note that the front plate 44 may be parallel to the inner wall W. The elevating sash 42 is provided on the front plate 44 so as to be vertically movable. The elevating sash 42 moves downward from the lower end of the front plate 44 in parallel with the extension line of the front plate 44 to adjust the size of the opening area on the front side of the workbench 2 for pathological examination. The elevating sash 42 has a glass plate and is interposed between the working space A1, which is the space above the pathological examination workbench 2, and the medical worker who performs the pathological examination. A medical worker performs work in a state in which his or her hand is inserted into the work space A1 from below the lift sash 42 while viewing the inside of the work space A1 through the lift sash 42 . The elevating sash 42 contacts the front side of the upper surface of the pathological examination workbench 2 in the lowest state. It should be noted that the liftable sash 42 does not necessarily have to be large enough to come into contact with the workbench 2 for pathological examination. Further, it is not always necessary to use a glass plate for the elevating sash 42, and for example, a transparent acrylic plate may be used.

The hood 4 is provided with a horizontal plate 5 that divides the space inside the hood 4 (the space surrounded by the top plate 43, the front plate 44 and the inner wall W) into an upper space A2 and a lower space A3. An exhaust duct (not shown) is connected to the upper space A2 so that the upper space A2 can be exhausted. In this embodiment, the horizontal plate 5 is provided with the air supply unit 6 . The air supply unit 6 blows air downward to form a downward airflow in the work space A1 above the workbench 2 for pathological examination. The air supply unit 6 may include a louver (not shown) that separates the airflow along the elevating sash 42 and the airflow directly downward. With this configuration, a so-called air curtain is formed by the airflow along the liftable sash 42, so that the gas is less likely to leak out of the apparatus. Incidentally, the air supply unit 6 may be provided as required.

The vertical plate 3 is fixed to the inner wall W via a support member (not shown). The support member supports the vertical plate 3 with a predetermined gap from the inner wall W. As shown in FIG. The method of supporting the vertical plate 3 is not limited, and for example, it may be erected from the floor.
A ventilable space (ventilation space A4) is formed between the vertical plate 3 and the inner wall W. Also, the upper end of the vertical plate 3 is in contact with the lower surface of the horizontal plate 5 . A ventilation hole 51 is formed in the horizontal plate 5 on the inner wall W side, and the ventilation space A4 (the gap between the vertical plate 3 and the inner wall W) is connected to the upper space A2 via the ventilation hole 51 . The gas that has flowed into the upper space A2 from the ventilation space A4 is exhausted through the exhaust duct.
The vertical plate 3 is provided with an exhaust louver 31 facing the work space A1 between the upper surface of the workbench 2 for pathological examination and the horizontal plate 5 . An exhaust louver 31 allows the working space A1 to be evacuated. In this embodiment, the exhaust louvers 31 are arranged vertically in two stages, but the number and arrangement of the exhaust louvers 31 are not limited. Further, the vertical plate 3 is formed with an exhaust port 33 (for example, an exhaust louver, etc.) facing the space below the pathological examination work table 2 (under-table space A5).

The pathological examination workbench 2 of this embodiment includes a sink 21, a receiving tank 22 provided under the sink 21, a trap 26 connected to the bottom surface of the receiving tank 22, a drain pipe 23, and a and an exhaust pipe 24 connected thereto.
The sink 21 is a water tank-like concave portion. An opening connected to the receiving tank 22 is formed in the bottom of the sink 21 . An opening formed in the bottom surface of the sink 21 is provided with a net or the like as necessary. By doing so, it is possible to prevent the sample or the like from dropping into the receiving tank 22 while causing the liquid or gas in the sink 21 to flow down to the receiving tank 22 . In the opening of the upper surface of the sink 21, a work board (work board 25) for work is laid as required. The working plate 25 is preferably a perforated plate having sufficient strength for performing the work and having a large number of holes extending therethrough. The material of the working plate member 25 is not limited, and for example, a plate member made of stainless steel may be used.
The receiving tank 22 temporarily receives liquid and gas flowing down from the sink 21 . The receiving tank 22 has a smaller volume than the sink 21 . An exhaust pipe 24 is connected to the receiving tank 22 . The exhaust pipe 24 is connected to an exhaust hole 32 formed in the vertical plate 3 . The exhaust pipe 24 guides the gas in the receiving tank 22 to the ventilation space A4. Gases heavier than the atmosphere (vaporized organic chemicals, etc.) flow down from the working space A<b>1 to the sink 21 , and then flow down from inside the sink 21 to the receiving tank 22 . The gas flowing down to the receiving tank 22 is exhausted from the receiving tank 22 to the ventilation space A4 through the exhaust pipe 24, then guided to the upper space A2 and exhausted through the exhaust duct. Therefore, organic chemical substances and the like do not stay in the receiving tank 22 .
A drain pipe 23 is connected to the bottom surface of the receiving tank 22 via a trap 26 . The drain pipe 23 drains liquid that has flowed down from the sink 21 to the trap 26 via the receiving tank 22 . Therefore, the liquid containing organic chemicals and the like does not stay in the receiving tank 22 . In addition, since the odor emitted from the liquid accumulated in the trap 26 is discharged from the exhaust pipe 24, the odor is prevented from flowing into the working space A1 (backflow). Note that the trap 26 may be provided as required.

An example of an examination procedure using the pathological examination system workbench is shown below.
First, after washing the sampled sample in the sink 2b, the sample is imaged using an organ imaging apparatus on the imaging table. Next, after cutting the specimen into a predetermined size on the cutting table, it is dehydrated and degreased on the waste liquid table to remove the alcohol. After that, the paraffin is embedded by a paraffin embedding machine. Next, the sample is sliced on the cutting table, spread on the work table 2a, and adhered to a slide glass for staining. The tissue sections are then covered with mounting medium and coverslips and stored in organ storage. The tissue sections are then examined microscopically as needed.

As described above, according to the pathological examination system examination table 1 of the present embodiment, since there is no support member for the hood 4 on the front side of the pathological examination work table 2, there is no space between the pathological examination work tables 2 (pathological examination system examination). It is easy to move the specimen in the table). That is, since the work spaces A1 of the adjacent pathological examination work tables 2 are continuous with each other, the sample can be moved to another pathological examination work table 2 without being taken out from the work space A1. Therefore, the specimen can be moved without being taken out of the system examination table 1 for pathological examination, and the examination can be completed. If the sample is not taken out of the apparatus, it is possible to prevent organic chemical substances and odors from leaking out of the apparatus together with the sample.
Since the hood 4 is fixed to the inner wall W and the pathological examination system examination table 1 is also installed during construction of the building, construction is easier than when the pathological examination workbench 2 is installed after construction of the building. In addition, the degree of freedom in arranging each facility is high.

Since the air supply unit 6 forms a downward airflow, the gas in the working space A1 is guided to the receiving tank 22 via the sink 21 . The gas that has flowed into the receiving tank 22 is guided through the exhaust pipe 24 to the ventilation space A4 on the back side of the vertical plate 3, flows to the upper space A2, and is exhausted from the exhaust duct. Therefore, the vaporized organic chemical substance is less likely to leak out of the apparatus (inside the pathological examination room R). In addition, since the gas heavier than the atmosphere flows down to the receiving tank 22 through the sink 21, organic substances do not stay in the work space A1 and the sink 21. FIG. Therefore, when working on the pathological examination workbench 2, organic chemical substances are less likely to leak out of the apparatus.

Since the gas that has flowed down from the sink 21 to the receiving tank 22 is exhausted through the exhaust pipe 24, the gas does not flow back from the receiving tank 22 side toward the work space A1. In addition, since the liquid that has flowed down to the receiving tank 22 is drained through the drain pipe 23, the liquid does not stay in the receiving tank 22, and the organic chemical substance vaporizes in the receiving tank 22 and leaks to the work space A1 side. I don't even have to.
Since the vertical plate 3 is provided with the exhaust louver 31, the gas is prevented from remaining in the working space A1. In other words, the gas in the work space A1 flows down to the sink 21 or is exhausted from the exhaust louver 31, so that it does not stay. Since the gas does not stay in the work space A1, it is possible to prevent the gas containing organic chemicals from leaking out of the apparatus.
Since the exhaust port 33 is formed in the vertical plate 3 so as to face the space A5 under the table, even if the gas leaks from the work space A1 to the space A5 under the table, the gas is exhausted from the exhaust port 33.
Since the ventilation space A4 is connected to the exhaust duct via the upper space A2, an airflow directed toward the upper space A2 is formed in the ventilation space A4. Therefore, the gas that has flowed into the ventilation space A4 is exhausted without remaining there.

Although the embodiments according to the present invention have been described above, the present invention is not limited to the above-described embodiments, and the constituent elements described above can be changed as appropriate without departing from the scope of the present invention.
The pathological examination workbench 2 may be rearranged as necessary.
Each pathological examination workbench 2 may be fixed to the inner wall W or the floor of the pathological examination room R.

1 Pathological examination system examination table 2 Pathological examination workbench 21 Sink 22 Receiving tank 23 Drain pipe 24 Exhaust pipe 3 Vertical plate 31 Exhaust louver 32 Exhaust hole 33 Exhaust port 4 Hood 5 Horizontal plate 51 Vent hole A1 Work space A2 Upper space A3 Lower space A4 Ventilation space A5 Understand space R Pathological examination room W Inner wall

Claims (4)

a sink;
a receiving tank provided under the sink;
a drain pipe connected to the bottom surface of the receiving tank;
and an exhaust pipe connected to the side surface of the receiving tank, comprising:
The receiving tank is connected to the bottom surface of the sink so that liquid and gas can flow down,
A workbench for pathological examination, wherein a gas heavier than the atmosphere flows down from the sink into the receiving tank and is exhausted from the receiving tank through the exhaust pipe. A system examination table for pathological examination in which a plurality of work tables with different uses are arranged side by side,
a hood covering above the workbench;
a horizontal plate dividing the space in the hood into an upper space and a lower space;
a vertical plate disposed with a gap from the inner wall on the back side of the workbench,
The hood is cantilevered on the back side of the workbench or suspended above the workbench,
At least one of the plurality of workbenches comprises a sink, a receiving tank connected to the bottom surface of the sink, and an exhaust pipe connected to the receiving tank,
an exhaust louver is provided on the vertical plate between the upper surface of the work table and the horizontal plate;
The exhaust pipe is connected to an exhaust hole formed in the vertical plate,
A gap between the vertical plate and the inner wall is connected to the upper space,
A system examination table for pathological examination, wherein an exhaust duct is connected to the upper space. 3. The system examination table for pathological examination according to claim 2, wherein an exhaust port is formed in said vertical plate so as to face the space below said work table. An examination method using the system examination table for pathological examination according to claim 2 or claim 3,
By laterally moving the specimen used on one of the plurality of work tables to the other work table without taking it out from the system examination table for pathological examination, the system examination table for pathological examination An inspection method characterized by preventing leakage of gas from inside.

Images