JP5476550B2 - Pathological specimen specimen stand equipment - Google Patents

Description

  The present invention relates to removal of harmful gases on a pathological anatomical specimen observation stand, and more particularly, to a pathological anatomical specimen observation base equipment that eliminates or reduces the influence of formaldehyde or formalin on a human body in pathology / anatomy practice.

  In anatomical training and field visits conducted by medical students and nursing students, the body placed on the pathological specimen specimen stand is treated with formalin, so formaldehyde generated from the formalin-treated body diverges, and this formaldehyde Adversely affects the anatomical trainees and the people involved. In addition, the observation of specimens in a small room has a problem that the formaldehyde concentration becomes abnormally high, which adversely affects the health of the observer and those nearby. The specimen observation stand refers to an instrument for placing a specimen and conducting pathological anatomy training and observation in order to dissect and observe a formalin-treated specimen. Formalin is a solution containing formaldehyde. Therefore, formaldehyde is mainly emitted into the air on the observation platform.

  In anatomical training and field trips, the amount of formaldehyde released into the air is large, so windows are opened and air is sent to the outside with a ventilation fan. Has been pointed out. In order to solve the above problems, various methods and apparatuses have been proposed.

  Patent Document 1 describes a method and apparatus for ventilating the air in the entire dissection room after decomposing formaldehyde contained in the air in the dissection room with a photocatalyst such as titanium oxide and then exhausting the air outside the room.

  In Patent Document 2, every four dissecting tables are arranged in the center of the dissecting tables, the gas around the dissecting tables is sucked, formaldehyde in the sucked air is removed by a filter, and ozone sterilization is performed. An apparatus and an apparatus for sterilization with an ultraviolet lamp are described.

  Patent Document 3 discloses that a formaldehyde decomposition removal agent or deodorant obtained by diluting alum, amino acid or urea with water is atomized by an ultrasonic atomizer, sprayed into the air, and the formaldehyde concentration or odor in the air. And the formaldehyde decomposition and removal by arbitrarily selecting the spraying time and spraying interval from continuous to intermittent with a continuous and intermittent control timer linked to the atomizer according to the spraying time zone.

JP 2003-320220 A JP 2003-116859 A JP 2006-346373 A

  The air cleaning method and apparatus described in Patent Document 1 is intended to decompose and remove formaldehyde in the air in the dissection room, and not to disassemble and remove formaldehyde in the air near the dissection table or dissection table. Therefore, the removal efficiency of formaldehyde on the dissection table is extremely low.

  In addition, the device described in Patent Document 2 is intended to suck air around the dissection table and remove formaldehyde with a filter, but does not directly suck air containing formaldehyde on the dissection table. The removal efficiency of formaldehyde on the dissection table is extremely low.

  In the formaldehyde decomposition / removal apparatus described in Patent Document 3, the formaldehyde decomposition / removal agent is atomized by an ultrasonic atomizer to lower the concentration of formalin in the air. Not efficiently removed.

  In Patent Documents 1 to 3, none of the treatment of the reaction product with formaldehyde is considered.

  In general, the method of ventilating the entire dissection room is expensive for facilities such as buildings and air conditioners, and also requires a large maintenance cost. Moreover, since the whole indoor air is ventilated, the load of the air conditioner for air conditioning becomes high, and the operation and maintenance cost is also high. It is still good to have a dissection room in a new building, but it is very expensive to modify an existing dissection room. From such a point of view, there is a need for an apparatus that locally processes the air on a pathological anatomical specimen observation stand, and that effectively removes formaldehyde emanating from the specimen in anatomical training and observation without increasing costs. .

  Therefore, the present invention is based on an antiseptic agent such as formalin that has processed pathological and anatomical specimens without significant changes to existing anatomical training rooms and classrooms, and without ventilating the entire sealed room. It is possible to provide a pathological anatomical specimen observation stand facility that can efficiently reduce formaldehyde generated in the observation stand from the observation stand and can be easily carried.

The pathological anatomical specimen observation stand facility of the present invention comprises a neutralizing agent spraying device that atomizes formaldehyde neutralizing agent and sprays it from above the pathological anatomical specimen observation base toward the pathological anatomical specimen observation base, and a pathological anatomical specimen observation stand. The base plate is provided with a large number of suction holes for sucking neutralizing agent mist and formalin-containing air, and the back side of the base plate is provided with a suction box that covers the entire back side, and the suction box is provided with a fan. In the pathological anatomical specimen observation stand equipment connected to the apparatus, a turbulence generator is arranged in the suction box .

In the above-described configuration, a neutralizing agent spray device and an ultrasonic spray device, a turbulent air flow generating device, spaced cylinder several sheets concentric flared funnel-shaped suction side, or the cylindrical funnel-shaped They are alternately placed upside down at intervals.

  The present invention reduces, eliminates and prevents discomfort and health problems caused by formaldehyde or formalin, and is a small, simple, inexpensive and pathological anatomical specimen stand unit that can be easily carried into a room without facilities. Is provided.

  Unlike the conventional method of removing formalin in the air of the entire room, the present invention neutralizes and recovers the local space before the formalin spreads, so that a large formalin air conditioning facility and an outdoor exhaust system are not required. .

  In the present invention, a turbulent flow is formed by the turbulent air flow generation device, and the reaction is amplified.

It is the schematic which shows the whole pathological anatomical specimen observation stand equipment of this invention. (A) is a schematic plan view of another Example of the turbulence generator used for this invention, (b) is the same schematic longitudinal cross-sectional view. It is a graph which shows the relationship between the formaldehyde density | concentration in the air after spraying the neutralizing agent ultrasonically, and time.

  Embodiments of the present invention will be described with reference to the drawings.

  In FIG. 1, the pathological anatomical specimen observation stand equipment of the present invention comprises a neutralizing agent spray device 1, a pathological anatomical specimen observation base (hereinafter referred to as “finding stand”) 2, a suction box 3, and a suction device 4.

  The neutralizing agent spraying apparatus 1 can use an ultrasonic humidifier that has conventionally sprayed water droplets using ultrasonic waves. The ultrasonic neutralizing agent spraying apparatus 1 includes a tank 5 for storing a formalin neutralizing agent, an ultrasonic vibrator 6 vibrated by an oscillator, and a neutralizing agent blowing nozzle 7 as in the conventional ultrasonic humidifying apparatus. The ultrasonic vibrator 6 is provided with a material having corrosion resistance against the neutralizing agent or a corrosion-resistant film. The height of the neutralizing agent blowing nozzle 7 is adjusted by expanding and contracting the extendable arm 8.

  Formaldehyde neutralizers include amino acid-based and ethylene urea-containing formaldehyde decomposition and removal agents and oxygen clusters. In this example, since an ultrasonic atomizer is used, a water-soluble substance is the main component. Although preferable, it is not limited only to alum, an amino acid type, and ethylene urea. Alum is most preferable because it is easily dissolved in water, can be prepared with a viscosity close to that of water, does not become a powder even when atomized, is nearly transparent, and is highly safe. Dilution water in which alum or ethylene urea is blended within a range of 0.001% to 5.0% by weight is preferable. The pH of the diluted water is adjusted as necessary.

  A neutralizer is supplied from the tank 5 to the ultrasonic vibrator 6 and brought into contact therewith, and energy is applied to the liquid surface to create a wave. In particular, a water column is formed at a site where the sound pressure is high, and a surface wave is generated. A mist of 0.5 μm to 7 μm is sprayed from above the observation table on which the pathological anatomical specimen is placed from the tip of a very small wave called a caterpillar wave. By making the neutralizing agent a mist of micron size, the time spent in the air becomes longer, and the neutralizing effect of the formalin neutralizing agent is dramatically improved and it is possible to remove high concentration formalin instantly Become.

  The base plate 9 of the observation base 2 is made of a stainless steel plate so as not to be corroded by formalin. A large number of suction holes 10 are provided in the base plate 9 in order to suck the mist of the neutralizing agent and the formalin-containing air. A suction box 3 that covers the entire surface is provided on the back side of the base plate 9. The suction box 3 is connected to a suction device 4 having a fan 11. A stainless steel tray 12 for receiving chemical by-products generated by neutralization of formalin and a neutralizing agent is disposed at the bottom of the suction box 3.

  A turbulence generator 13 for generating turbulence is arranged in the suction box 3 in order to amplify the reaction by mixing formalin and a neutralizing agent. The turbulent air flow generator 13 shown in FIG. 1 has a funnel-shaped cross section, a wide suction side (base plate side), and a narrow exhaust side (tray side). A plurality of concentric circles are arranged. The formalin and the neutralizing agent sucked from the wide suction side of the turbulent air flow generator 13 are sucked to the narrow exhaust side, so that a turbulent flow is formed and the reaction is amplified.

  FIG. 2 shows another embodiment of the turbulent air flow generation device 13, and the formalin removal effect is improved by arranging the funnel-shaped cylinders 14 upside down and alternately arranged at intervals.

  The funnel-shaped cylinder 14 can be removed, can be easily washed after use, and the crystallized chemical by-product can be completely removed.

  The formalin and formalin neutralizer in the air sucked into the suction box 3 by the suction device 4 through the suction hole 10 of the base plate 9 of the observation table 2 completes the chemical reaction with the turbulence by the turbulence generator 13. By extending the time until the neutralization, a chemical reaction is sufficiently caused to be neutralized, and chemical by-products generated after the neutralization are received by the tray 12. This removes 99% of the formalin in the air and returns the air to the room.

Experiment 1
In a sealed space (1m x 1m x 1m), 35% formaldehyde is naturally vaporized for 2 minutes, the lid is closed and left for 10 minutes, or formaldehyde neutralizer (trade name Infiltrace, manufactured by Pharma Co., Ltd.) is applied ultrasonically. Then, the concentration of formaldehyde in the air was measured.

  The average measured value after 10 minutes confirmed that the decrease in formaldehyde decreased to 78.65% without neutralization spraying, whereas the concentration decreased to 0.85% when the neutralizing agent was sprayed ultrasonically. The dramatic formaldehyde removal effect by ultrasonic neutralizer application was recognized. Moreover, as a result of measuring the formaldehyde removal rate of the said experiment for every time, as shown in FIG. 3, 90% was removed in the first 1 minute, and it was suggested that the chemical reaction has occurred in a very short time.

Experiment 2
Formalin-fixed pork specimen 210g (soaked in 15% formaldehyde for more than 24 hours) is placed on the observation stand of the present invention, and at the same time as spraying formaldehyde neutralizing agent mist generated ultrasonically from above The formaldehyde content of the exhaust gas after passing through the small holes and turbulence device was measured.

  The formaldehyde concentration through the turbulence device was reduced to ¼ compared to the control group. In addition, the formaldehyde removal rate improved as the number of funnel-shaped cylinders spreading toward the suction side in the turbulence generator increased.

  The turbulent airflow apparatus in which the funnel-shaped cylinders were alternately arranged upside down had a discharge concentration of 0.162 ppm in a continuous operation for 10 minutes and a high formaldehyde removal rate. As a result of neutralizing formaldehyde, it was observed that urea-based chemical by-products remained as crystals in the turbulence apparatus.

1: Neutralizer spray device 2: Observation stand 3: Suction box 4: Suction device 5: Tank 6: Ultrasonic vibrator 7: Neutralizer blowing nozzle 8: Arm 9: Base plate 10: Small hole 11 for suction: Fan 12: Tray 13: Turbulence generator 14: Funnel-shaped cylinder 15: Sample

Claims (4)

A neutralizing agent spraying device that atomizes formaldehyde neutralizing agent and sprays it from above the pathological specimen specimen stand toward the pathological specimen specimen stand, and the base plate of the pathological specimen specimen stand contains neutralizing agent mist and formalin A large number of suction holes for sucking air are provided, and a suction box covering the entire back side is provided on the back side of the base plate, and the suction box is connected to a suction device equipped with a fan. In equipment ,
A pathological anatomical specimen observation stand facility, characterized in that a turbulence generator is disposed in the suction box . Autopsy specimens findings stand equipment according to claim 1, wherein the neutralizing agent spray device is an ultrasonic spray device. 2. The pathological anatomical specimen observation stand equipment according to claim 1 , wherein the turbulent air flow generating device has a plurality of funnel-shaped cylinders concentrically spaced apart on the suction side . 2. The pathological anatomical specimen observation stand equipment according to claim 1 , wherein the turbulent air flow generating device has funnel-shaped cylinders alternately arranged upside down at intervals .

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