JPH07213590A - Autoclave - Google Patents

Abstract

PURPOSE:To make appearance of an autoclave better and to make handling easier by equalizing the chamber opening dimension of the autoclave to the lid dimension to make the front side of the autoclave almost within an identical plane and lightening the weight of the lid. CONSTITUTION:An autoclave has a casing 1 with a chamber 3 to contain a member to be sterilized and an openable lid to close an opening of the chamber 3, and generates high pressure steam by heating water in the chamber 3 to sterilize a member to be sterilized. The dimension of the openable lid 2, especially the dimension of an out-fitting lid 2b, is formed almost equal to the opening of the chamber 3 to make possible the surface of the out-fitting lid part 2b to be in an identical plane with the surface of the casing 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an autoclave device, and more particularly, to an autoclave device suitable for sterilizing instruments such as handpieces frequently used in dental treatment, having a simple structure, and The present invention relates to an autoclave device that is easy to handle.

[0002]

2. Description of the Related Art In dental treatment, various instruments such as turbine handpiece, contra-shank handpiece, multi-syringe, ultrasonic scaler and the like are used, and these are used for each patient from the viewpoint of hygiene. It is preferable to use a sterilized product. Therefore, conventionally, an autoclave device (high-pressure high-temperature steam sterilizer) has been prepared in each clinic, and in general, these instruments have been sterilized before the start of medical treatment and sterilized for each patient. I try to use instruments.

FIG. 3 is a view for explaining an example of a conventional autoclave apparatus, in which 1 is a casing body and 2 is a body.
3 is an opening / closing lid, and FIG. 3A shows a state in which the opening / closing lid 2 is closed.
(B) shows a state in which the opening / closing lid 2 is opened. In use, as is well known, the opening / closing lid 2 is opened, the instrument to be sterilized is placed in the chamber 3 of the casing body 1, and then the opening / closing lid 2 is closed. The handle of the lock mechanism 4 provided on the opening / closing lid 2 is rotated so as not to open due to the vapor pressure inside, and the lock bolt 4a is screwed into the lock screw hole 4b provided in the casing body 1, whereby The opening / closing lid 2 is locked to the casing 1. Water is injected into the chamber 3, and steam is generated by heating the water to generate high-pressure high-temperature steam in the chamber 3. However, when the water in the chamber 3 is insufficient, water injection is performed. Lid 5
When the drive switch on the operation panel 6 is pressed after opening the chamber and replenishing water, the heater in the chamber 3 heats up, steam is generated in the chamber 3, and high pressure (about 2.2 atm. ) Is reached.

[0004]

The autoclave apparatus, which generates high-pressure high-temperature steam in the chamber as described above to sterilize the instrument contained in the chamber, is a high-pressure container. Therefore, there is a problem in that the structure is robust, and in particular, the structure of the opening / closing lid 2 is heavy and actually heavy and difficult to handle. Specifically, the opening / closing lid 2 is designed to keep the chamber 3 airtight and withstand the vapor pressure in the chamber 3. However, in the illustrated prior art, the chamber 3 is kept airtight. Airtight lid 2a and the airtight lid 2
a cover 2b held integrally with a, and the opening / closing lid 2 is rotatably attached to the casing main body 1 by an opening / closing mechanism (hinge mechanism).
Although the opening / closing lid 2 is fixed to the casing body 1 by the above, when the opening / closing lid 2 is closed, the surface of the casing 1, specifically, the edge B portion of the opening of the chamber 3 is provided with the airtight lid portion 2a. The inner portion A is in intimate contact with the interior of the chamber 3 to keep the interior of the chamber 3 airtight.

As described above, in the autoclave device, the opening / closing lid 2 is only required to keep the chamber 3 airtight and withstand the high pressure in the chamber 3. The size of the lid 2
It suffices that it matches the opening size of the chamber 3. However, in the above-mentioned conventional technique, the opening / closing lid 2 has the casing 1
Is protruding from the surface of the opening / closing lid, and when the opening / closing lid 2 is closed, the protruding thickness of the opening / closing lid 2 is large, and accordingly, the weight is heavy and the appearance is robust, and it is actually used and handled. There was a problem that it was difficult.

[0006]

In order to solve the above-mentioned problems, the present invention provides (1) a casing having a chamber for accommodating a member to be sterilized and an opening of the chamber integrally attached to the casing. In an autoclave device having an opening / closing lid for opening and closing, heating water in the chamber to generate high-pressure steam in the chamber, and sterilizing a member to be sterilized contained in the chamber, an outer surface of the casing. And the outer surface of the opening / closing lid is substantially the same surface, and (2) the opening / closing mechanism of the opening / closing lid holds the pin shaft fixed to the casing and the opening / closing lid, and one end of the pin is the pin. An arm rotatably connected to a shaft, the arm having a part of a surface facing the outer surface of the casing formed into an arc surface, and the arc surface when the lid is opened and closed. Moving along the edge of the opening, or (3) having a lock mechanism for fixing the arm to the casing, the lock mechanism being operated by operating a handle provided on the arm. It is characterized by comprising a rod that can be projected from the arm and a rod receiver that is provided in the casing and into which the rod is inserted.

[0007]

[Function] The size of the opening / closing lid of the autoclave device is made approximately the same as the opening size of the chamber, and thus the front face of the autoclave device is made substantially the same surface to improve the appearance and reduce the weight of the opening / closing lid. Make it easy to handle.

[0008]

1 is a view for explaining an embodiment of an autoclave device according to the present invention, FIG. 1 (a) shows a state in which an opening / closing lid is closed, and FIG. 1 (b) shows an opening / closing lid. Shows the open state. In the figure, the same reference numerals as those in the case of FIG. 3 are attached to the portions having the same operations as those of the prior art shown in FIG.

Therefore, in the present invention, the exterior lid portion 2b.
Has a size substantially the same as that of the airtight lid 2a, and the outer lid 2b is loosely inserted into the opening of the chamber 3 together with the airtight lid 2a. Therefore, according to the present invention, the weight of the exterior lid portion 2b can be reduced, the lid can be opened and closed easily, and the handle can be easily handled. Moreover, the surface of the exterior lid portion 2b is substantially the same as the surface of the casing 1. As a result, the appearance is not as robust as that of the prior art, and the appearance is good.

In the present invention, as described above, the dimensions of the opening / closing lid 2 (specifically, the exterior lid portion 2b) of the autoclave device are
The opening and closing lid 2 is made substantially the same as the opening of the chamber 3.
The surface of the opening / closing lid 2 is made to be substantially the same as the surface of the casing main body 1 in order to reduce the weight of the opening / closing lid 2 by devising an opening / closing mechanism for opening / closing the opening / closing lid 2. Requires.

FIG. 2 is a configuration diagram of a main part for explaining an example of the opening / closing mechanism and the lock mechanism according to the present invention, and FIG.
Is a view seen from the direction of the line AA in FIG. 2B, and FIG.
Is a view as seen from the direction of the line BB in FIG.
The portion is an opening / closing mechanism portion (hinge mechanism portion), and the portion II is a lock mechanism portion. First, the opening / closing mechanism portion I will be described. In the opening / closing mechanism portion I, 10 is a pin member provided on the casing body 1 side, 11 is an arm member having a pin hole into which the pin member 10 is loosely inserted, and the arm member 11 rotates about the axis of the pin 10. It is attached freely. The airtight lid portion 2a is attached to one side (chamber 3 side) of the arm member 11, and the exterior lid portion 2b is attached to the other side (front surface side of the casing 1). 1
When 1 is closed, the inner peripheral surface A of the airtight lid portion 2a comes into close contact with the airtight receiving surface B in the chamber 3 to keep the chamber 3 airtight.

As described above, when the opening / closing lid 2 is opened / closed by using the hinge mechanism, the dimensions of the airtight lid portion 2a and the exterior lid portion 2b and the dimensions of the opening of the chamber 3 are made substantially the same. When the opening / closing lid 2 is closed and the gap between the opening / closing lid 2 and the opening of the chamber 3 is made as small as possible, the opening edge portion 1a of the casing body 1 contacts the outer surface of the arm member 11. , Unable to achieve the intended purpose.

In the present invention, in order to solve the above-mentioned problems, a part of the outer surface of the arm member 11 is arcuately shaped 11a.
When the arm 11 is rotated around the pin 10, the arcuate portion 11a is moved along the opening edge portion 1a, so that the opening shape of the chamber 3 is changed to the desired shape ( For example, the opening / closing lid 2 can be opened and closed while keeping it in a circle.

As described above, in the present invention, since the opening / closing lid of the autoclave device is smaller than the chamber opening and has substantially the same size as the opening, the opening / closing lid can be loosely inserted into the chamber opening. The outer surface of the lid can be formed to be approximately flush with the outer surface of the casing body, and the gap between the chamber opening and the opening / closing lid can be made small so that it looks good and the opening / closing lid is light. However, the opening / closing lid can be easily opened and closed. In addition,
In this case, if the exterior lid portion 2b is provided in front of the surface of the casing 1, the size of the exterior lid portion 2b can be made larger than the opening of the chamber 3, and the chamber opening is apparently formed between the opening and the closing lid. The gap can be eliminated.

Next, the lock mechanism section II will be described. In the case of the illustrated example, the arm 11 extends from the hinge portion to the other end of the chamber opening, and a lock mechanism is provided at the end. The arm 11 is provided with a handle 21 for opening and closing the opening / closing lid 2, and a shaft 22 of the handle 21 is rotatably attached around a pin shaft 23 provided in a direction crossing the arm 11. Therefore, the handle 21 has the pin shaft 23
The arm 11 can be pivoted around and can be tilted in the axial direction of the arm 11 (directions A and B).

A rod (lock bar) 24 is attached to the tip of the shaft 22 of the handle 21. Therefore, when the handle 21 is tilted in the A direction, the rod 24 projects from the tip of the arm 11 and in the B direction. When it is tilted down, it is retracted into the tip of the arm 11. The casing body 1 includes the rod 2
4 is provided with a rod receiving portion 20 for preventing the opening / closing lid from being opened when the rod 2 is received.
When 4 is projected from the tip of the arm 11, it is inserted into the rod receiving portion 20. Therefore, when the opening / closing lid 2 is closed and the handle 21 is tilted in the direction of arrow A, the rod 2
4 is inserted into the rod receiving portion 20, and in this state, the opening / closing lid 2 is not opened. That is, even if the vapor pressure in the chamber 3 becomes high, the opening / closing lid 2 does not open. When the opening / closing lid 2 is opened, if the handle 21 is tilted in the direction of the arrow B, the rod 24 comes out from the rod receiving portion 20, so that the opening / closing lid 2 can be opened by pulling the handle 21 forward in this state. However, at this time, it is dangerous to open the opening / closing lid when the vapor pressure in the chamber 3 is high.
It is advisable that the steam can be opened in a state where the vapor in the chamber 3 is at approximately zero atmospheric pressure.

[0017]

As is clear from the above description, according to the present invention, the size of the opening / closing lid is made as small as possible in the autoclave device, so that the weight of the opening / closing lid can be made as light as possible. , Opening and closing work of the opening and closing lid became very easy. Further, since the size of the opening / closing lid is set to be substantially the same as the opening size of the chamber so that the opening / closing lid can be loosely inserted into the opening, the surface of the opening / closing lid and the outer surface of the casing body can be made substantially flush. The surface shape of the autoclave device can be made gentle so that the appearance is good. Further, a strong airtight lid portion for sealing the chamber opening is attached to one side (chamber opening side) of the arm that opens and closes and locks the opening / closing lid, but the other side (casing surface side) is Since the outer lid portion that requires almost no strength is attached, various desired materials can be selected and used as the material of the outer lid portion. For example, when a synthetic resin material is used, the outer lid portion can be selected. The shape of the portion can be formed relatively easily and inexpensively as desired, and the weight can be reduced. Further, since the opening / closing lid can be locked by operating the handle for opening / closing the opening / closing lid, not only the locking mechanism of the opening / closing lid is simplified and the locking operation is facilitated,
It is possible to provide an autoclave device that has a lock mechanism that is inconspicuous and has a good appearance.

[Brief description of drawings]

FIG. 1 is a diagram for explaining an embodiment of an autoclave device according to the present invention, and is a diagram showing a state in which an opening / closing lid is closed and a state in which the lid is open.

FIG. 2 is a main part configuration diagram for explaining details of an opening / closing mechanism and a lock mechanism of an opening / closing lid.

FIG. 3 is a diagram for explaining an example of a conventional autoclave device, and is a diagram showing a closed state and an open state of an opening / closing lid.

[Explanation of symbols]

1 ... Casing body, 2 ... Opening / closing lid, 2a ... Airtight lid part, 2
b ... Exterior lid part, 3 ... Chamber, 4 ... Lock mechanism, 5 ...
Water injection lid, 6 ... Opening / closing mechanism, I ... Opening / closing mechanism part, II ... Locking mechanism part, 10 ... Pin member, 11 ... Arm member, 20 ... Rod receiving part, 21 ... Handle, 23 ... Pin shaft, 24 ... Rod.

Claims (3)

[Claims] 1. A casing having a chamber for accommodating a member to be sterilized, and an opening / closing lid which is integrally attached to the casing to open and close the opening of the chamber, wherein the water in the chamber is heated and In an autoclave device for generating high-pressure steam in a chamber to sterilize a member to be sterilized contained in the chamber, an outer surface of the casing and an outer surface of the opening / closing lid are substantially flush with each other. apparatus. 2. The opening / closing mechanism of the opening / closing lid includes a pin shaft fixed to the casing, and an arm holding the opening / closing lid and having one end rotatably connected to the pin shaft.
A part of the surface of the arm facing the outer surface of the casing is formed into an arc surface, and the arc surface moves along the edge of the opening of the casing when the lid is opened and closed. Item 1. The autoclave device according to Item 1. 3. A lock mechanism for fixing the arm to the casing, the lock mechanism comprising: a rod which can be projected from the arm by operating a handle provided on the opening / closing lid; The autoclave device according to claim 1 or 2, further comprising: a rod receiver provided in the casing, into which the rod is inserted.