CN107029264B

CN107029264B - Steam sterilization box

Info

Publication number: CN107029264B
Application number: CN201710447974.8A
Authority: CN
Inventors: 王凯; 李彦; 赵武; 李文强; 李翔龙; 熊艳; 陶冶
Original assignee: Sichuan University
Current assignee: Sichuan University
Priority date: 2017-06-14
Filing date: 2017-06-14
Publication date: 2023-09-12
Anticipated expiration: 2037-06-14
Also published as: CN107029264A

Abstract

The invention discloses a steam sterilization box, which comprises a box body and a box cover which are matched, wherein a sterilization assembly is arranged between the box cover and the box body, the sterilization assembly comprises a sterilization air bag and a one-way valve, one end of the sterilization air bag is communicated with the one-way valve, and the other end of the sterilization air bag is communicated with an elongated pipeline through a pipeline connecting piece. The invention has low cost and simple structure, can fully sterilize the inner wall of the pipeline of the medical instrument with the slender hole, and can accommodate a plurality of medical instruments and sterilize the medical instruments at the same time.

Description

Steam sterilization box

Technical Field

The invention relates to a sterilization box, in particular to a steam sterilization box.

Background

In the medical field, the disinfection and sterilization of medical instruments are very important, and the low-temperature disinfection and sterilization mode of the medical instruments which is the most advantageous and popular at present is to adopt hydrogen peroxide disinfectant for disinfection and sterilization. In order to improve the sterilization effect, shorten the sterilization time and reduce the sterilization cost, the medical instrument is generally required to be sterilized by purifying and then gasifying the hydrogen peroxide liquid in a vacuumizing heating mode. At present, the hydrogen peroxide gasification disinfection and sterilization equipment has become the first choice for low-temperature disinfection and sterilization of medical instruments. The existing hydrogen peroxide plasma sterilization equipment has the advantages of good sterilization effect, short sterilization time, environmental protection and no pollution; the disadvantages are high equipment cost, high price, and the need to dry the medical apparatus before sterilization.

The invention discloses a hydrogen peroxide steam sterilization device and a sterilization method using the device, as disclosed in the invention patent with the Chinese patent number of 200580040368.X, the invention discloses a device and a method for sterilizing articles by using hydrogen peroxide in a reactor, wherein the temperature of the inner space of the reactor is heated to 30-60 ℃ and kept in a vacuum pressure state lower than the equilibrium vapor pressure of the hydrogen peroxide, a hydrogen peroxide solution is injected into the inner space of the reactor, then the hydrogen peroxide in the reactor is evaporated, the inner space of the reactor is sealed and the articles are kept in the steam environment of the hydrogen peroxide, then external air is introduced into the inner space of the reactor to increase the pressure of the inner space to a preset value not more than the standard atmospheric pressure, and the method and the device can be used for sterilizing the sterilizing agent such as the hydrogen peroxide in a low-temperature state, but the method and other hydrogen peroxide evaporation sterilization devices in the prior art have the defects together; it is not easy to sufficiently sterilize the inner wall of a tube of a medical instrument having an elongated hole such as an endoscope such as a enteroscope.

In addition, in the prior art, only one sterilization box can be sterilized at a time during sterilization, the sterilization cost and the sterilization equipment cost are very high, and the structure of the sterilization equipment is more complex.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a steam sterilization box which has low cost and simple structure, can sufficiently sterilize the inner wall of a pipeline of a medical instrument with an elongated hole, can accommodate a plurality of medical instruments and sterilize the medical instruments at the same time.

The aim of the invention is realized by the following technical scheme:

the steam sterilization box comprises a box body and a box cover which are matched, wherein at least one group of sterilization components are arranged between the box cover and the box body, each sterilization component comprises a sterilization air bag and a one-way valve, one end of each sterilization air bag is communicated with the corresponding one-way valve, and a pipeline connecting piece for installing a piece to be sterilized is arranged at the other end of each sterilization air bag.

Preferably, the check valve is a micropressure check valve, the sterilizing air bag is ellipsoidal, a steam cavity is arranged in the sterilizing air bag and is communicated with the check valve, and the distance between the outer wall of the sterilizing air bag along the short axis direction and the steam cavity is smaller than the distance between the outer wall of the sterilizing air bag along the long axis direction and the steam cavity.

Preferably, the left side and the right side of the box body are respectively provided with a groove A, a mounting bracket is arranged in the grooves A, a box buckle is arranged on the mounting bracket, the left side and the right side of the box cover are respectively provided with a groove B, buckling positions are arranged in the grooves B, and the buckling positions are in buckling connection with the box buckle.

Preferably, the bottom of lid has seted up annular seal groove, be equipped with sealing washer A in the annular seal groove, be equipped with instruction card observation window and two transom windows on the lid, instruction card observation window is located the lid middle part, and two transom windows are located the left and right sides of instruction card observation window respectively.

Preferably, the ventilation window sequentially comprises a locking buckle, a dustproof ventilation pad and a lower boss from bottom to top, the lower boss and the box cover are integrally formed, the dustproof ventilation pad and the lower boss are locked through the locking buckle, at least four studs are arranged at the bottom of the lower boss, at least four through holes A matched with the studs are formed in the dustproof ventilation pad, and a plurality of ventilation holes are formed in the lower boss.

Preferably, the locking buckle comprises an annular buckle and a circular pressing plate, an annular groove is formed in the pressing plate, a sealing ring B is arranged in the annular groove, a circular boss is arranged below the pressing plate, the circular boss is matched with an inner through hole C of the annular buckle, at least four waist-shaped holes A and at least four waist-shaped holes B are formed in the annular buckle, at least four through holes C corresponding to the waist-shaped holes A one to one are formed in the pressing plate, the studs penetrate through the through holes C and the waist-shaped holes A, screws are arranged in the waist-shaped holes B, the annular buckle is connected with the pressing plate through screws, a plurality of through holes B are formed in the circular boss, and at least four baffles are arranged on the edge of the top surface of the annular buckle.

Preferably, the box body is rectangular, and a plurality of rib plates are arranged on the inner bottom surface of the box body along the short side direction.

Preferably, the dustproof ventilation pad is a non-woven fabric.

Preferably, the indicator card observation window comprises an indicator card, an observation window cover and a transparent observation window body, wherein the indicator card is positioned between the observation window and the observation window cover, the observation window is connected with the observation window cover in a clamping manner, and a plurality of vent holes are formed in the observation window cover.

Preferably, the observation window body is in a round table shape, the box cover is provided with a conical hole matched with the observation window body, and the distance between the top surface of the observation window body and the bottom surface of the observation window body is smaller than that between the top surface of the box cover and the bottom surface of the observation window body.

The beneficial effects of the invention are as follows: besides the advantage that common instruments can be sterilized, the sterilization of the slender tube can be completed by using the common medical instrument sterilization scheme for the sterilization box by using the common hydrogen peroxide low-temperature plasma sterilizer equipment and the like, so that the sterilization work becomes simpler and more effective, the sterilization speed is improved, the cost of the sterilizer is reduced, particularly the improved sterilization operation space is realized, and the effect of simultaneously sterilizing a plurality of slender pipelines and other medical instruments to be sterilized in one sterilization box can be realized by arranging a plurality of groups of sterilization components.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is a schematic diagram of an explosive structure according to the present invention;

FIG. 4 is a schematic structural view of a locking buckle;

FIG. 5 is a schematic diagram of the connection between the stud and the locking clasp, and the lid;

FIG. 6 is a schematic view of a sterilization assembly;

in the figure, 1-box cover, 2-box body, 3-sterilization component, 4-slender pipeline, 5-pipeline connecting piece, 6-check valve, 7-sterilization air bag, 8-groove A, 9-mounting bracket, 10-box buckle, 11-groove B, 12-buckle position, 13-sealing ring A, 14-indicator card observation window, 15-ventilation window, 16-locking buckle, 17-dustproof ventilation pad, 18-lower boss, 19-stud, 20-through hole A, 21-ventilation hole, 22-annular buckle, 23-pressing plate, 24-annular groove, 25-sealing ring B, 26-through hole B, 27-observation window body, 28-indicator card, 29-observation window cover, 30-ventilation hole, 31-waist-shaped hole A, 32-waist-shaped hole B, 33-screw, 34-round boss, 35-through hole C, 36-steam cavity, 37-rib plate.

Detailed Description

The technical scheme of the present invention is described in further detail below with reference to specific embodiments, but the scope of the present invention is not limited to the following description.

Example 1

As shown in fig. 1-3, a steam sterilization box comprises a box body 2 and a box cover 1 which are matched, a sterilization assembly 3 is arranged between the box cover 1 and the box body 2, the sterilization assembly 3 comprises a one-way valve 6 and a sterilization air bag 7 capable of sucking out sterilizing agent, one end of an elongated pipeline of a pipeline connecting piece 5 is communicated with the one-way valve 6, and the other end of the elongated pipeline of the pipeline connecting piece 5 is provided with the pipeline connecting piece 5. The left side and the right side of the box body 2 are respectively provided with a groove A8, a mounting bracket 9 is arranged in the groove A8, a box buckle 10 is arranged on the mounting bracket 9, the left side and the right side of the box cover 1 are respectively provided with a groove B11, a buckling position 12 is arranged in the grooves B11, and the buckling position 12 is in clamping connection with the box buckle 10. The bottom of lid 1 has seted up annular seal groove, is equipped with sealing washer A13 in the annular seal groove, is equipped with instruction card 28 observation window 14 and two transom 15 on the lid 1, and instruction card 28 observation window 14 is located lid 1 middle part, and two transom 15 are located the left and right sides of instruction card 28 observation window 14 respectively.

As shown in fig. 1-5, the ventilation window 15 sequentially comprises a locking buckle 16, a dustproof ventilation pad 17 and a lower boss 18 from bottom to top, the lower boss 18 and the box cover 1 are integrally formed, the dustproof ventilation pad 17 and the lower boss 18 are locked through the locking buckle 16, at least four studs 19 are arranged at the bottom of the lower boss 18, at least four through holes A20 matched with the studs 19 are formed in the dustproof ventilation pad 17, and a plurality of ventilation holes 21 are formed in the lower boss 18. Preferably, the dustproof ventilation pad 17 is a non-woven fabric, and the non-woven fabric can completely penetrate sterilizing steam and isolate external dust and bacteria. The locking buckle 16 comprises an annular buckle 22 and a circular pressing plate 23, an annular groove 24 is formed in the pressing plate 23, a sealing ring B25 is arranged in the annular groove 24, a circular boss 34 is arranged below the pressing plate 23, the circular boss 34 is matched with an inner through hole C35 of the annular buckle 22, at least four waist-shaped holes A31 and at least four waist-shaped holes B32 are formed in the annular buckle 22, at least four through holes C35 corresponding to the waist-shaped holes A31 one by one are formed in the pressing plate 23, studs 19 penetrate through the through holes C35 and the waist-shaped holes A31, screws 33 are arranged in the waist-shaped holes B32, the annular buckle 22 is connected with the pressing plate 23 through the screws 33, and a plurality of through holes B26 are formed in the circular boss 34. At least four baffles are provided on the top surface of the annular button 22 to facilitate rotation of the annular button 22.

The indicator card 28 observation window 14 comprises an indicator card 28, an observation window cover 29 and a transparent observation window body 27, wherein the indicator card 28 is positioned between the observation window and the observation window cover 29, the observation window is connected with the observation window cover 29 in a clamping manner, a plurality of vent holes 30 are formed in the observation window cover 29, and the vent holes 30 are used for communicating the box body 2 with the inner space of the observation window. The observation window body 27 is round table-shaped, the box cover 1 is provided with a conical hole matched with the observation window body 27, and the distance between the top surface of the observation window body 27 and the bottom surface of the observation window body 27 is smaller than that between the top surface of the box cover 1 and the bottom surface of the observation window body 27. The indicator card 28 is contacted with the sterilizing gas with a certain concentration, and the indicator card 28 changes color to indicate, so that a worker can observe the change of the indicator card 28 through the transparent observation window body 27 to judge the sterilizing effect.

Wherein, box body 2 is rectangle, is equipped with a plurality of gusset 37 along the minor face orientation on the interior bottom surface of box body 2, has a plurality of archs and vacancy on the gusset 37 to arrange, can provide intensity support for box body 2, can regard as the fixed bolster of placing long and thin pipeline 4 simultaneously. The check valve 6 is a micro-pressure check valve 6, the opening pressure is very small, and the check valve 6 works when the internal and external pressure difference is 100pa, so that the pressure difference between the steam cavity 36 and the sterilization box is small when vacuumizing is performed, the sterilization steam cannot enter the sterilization air bag 7 from the check valve 6 when entering the sterilization box, and the sterilization air bag 7 is ensured to suck enough gas so that the outside sterilant steam can completely and stably fill the inside of the slender pipeline 4.

As shown in fig. 6, the material of the sterilizing air bag 7 is selected from soft and corrosion-resistant materials such as silica gel with certain strength, the sterilizing air bag 7 is ellipsoidal, a steam cavity 36 is arranged in the sterilizing air bag 7, and the steam cavity 36 is communicated with the one-way valve 6. The distance between the outer wall of the sterilization air bag 7 along the short axis direction and the steam cavity 36 is smaller than the distance between the outer wall of the sterilization air bag 7 along the long axis direction and the steam cavity 36, namely the thickness of the side wall of the sterilization air bag 7 in the ellipsoidal short axis direction is small, so that the sterilization air bag 7 can be easily pressed and deformed when vacuumizing and sterilizing agents enter a sterilization box, the thickness of the side wall of the sterilization air bag 7 in the ellipsoidal long axis direction is large, and the sterilization air bag 7 can be completely restored to the ellipsoidal shape after being deformed, so that the sterilization air bag 7 can work stably.

When sterilizing medical equipment such as the slender pipeline 4, the pipeline connecting piece 5 is a cylindrical silica gel piece with good elasticity, one end of the pipeline connecting piece is provided with a thin-wall conical surface which is concave inwards, and a small hole is formed in the middle of the thin-wall conical surface, so that the slender pipeline 4 is convenient to insert, and the contact surface is smaller and the clamping force is larger during insertion; an annular hole is formed in one end of the sterilizing air bag 7, an annular boss matched with the annular hole is arranged on the pipeline connecting piece 5, the pipeline connecting piece 5 can be clamped on the sterilizing air bag 7 through the matching of the annular hole and the annular boss, and the steam cavity 36 is communicated with the slender pipeline 4; the other end of the sterilizing air bag 7 is provided with a concave thin-wall hole, and the micro-pressure one-way valve 6 is arranged in the thin-wall hole; the other end of the pipe connection 5 is inserted into the elongated pipe 4, and the elongated pipe 4 is inserted into the pipe connection 5 to a depth of more than five millimeters.

During sterilization, the slender pipeline 4 to be sterilized is firstly installed on the pipeline connecting piece 5, the dustproof ventilation pad 17 is placed under the box cover 1, the sealing ring B25 is pressed, the baffle is rotated to enable the waist-shaped hole A31 to be aligned with the through hole C35, the stud 19 penetrates through the waist-shaped hole A31 and the through hole C35, the annular buckle 22 and the pressing plate 23 are movably connected through the screw 33 in the waist-shaped hole B32, the annular buckle 22 can rotate around the center of the pressing plate 23, the rotatable maximum distance is smaller than the length of the waist-shaped hole A31, the annular buckle 22 is rotated to be clamped into the clamping groove on the stud 19, the locking buckle 16 is fixed on the box cover 1 through the deformation thrust of the sealing ring B25, and when the box buckle 10 and the buckling position 12 are only required to be opened, the annular buckle 22 is rotated to leave the clamping groove of the stud 19, and the locking buckle 16 is automatically separated from the box cover 1 under the deformation thrust of the sealing ring B25. The indication card 28 is placed on the observation window cover 29, the observation window cover 29 is clamped with the observation window body 27, the box cover 1 is finally covered on the box body 2, the box buckle 10 is rotated, the box buckle 10 is clamped and fixed with the buckle position 12, the box body 2 is sealed through the sealing ring A13, and the box buckle can be communicated with the outside only through the ventilation holes 21. Then placing the sterilization box into a vacuum gas sterilizer such as a hydrogen peroxide low-temperature plasma sterilizer, when the sterilizer starts vacuumizing, air in the sterilization box is pumped out from the air holes 21, air in the sterilization air bags 7 is pumped out, then high-purity sterilization steam such as hydrogen peroxide steam is injected, the sterilization steam sequentially passes through the air holes 21, the dustproof ventilation cushion 17 and the through holes B26 to enter the box body 2, the check valve 6 is closed, the sterilization air bags 7 are filled with the sterilization steam through the slender pipeline 4, and the atmospheric pressure is restored in the sterilization box; vacuumizing again, extracting the sterilizing agent from the sterilizing box ventilation window 15 and decomposing the sterilizing agent by plasma, and enabling external air to enter the sterilizing box again to finish sterilization; the sterilizing box can be directly taken out for storage after sterilization, and the non-woven fabric of the ventilation window 15 of the sterilizing box can prevent dirty gas and moisture from entering the sterilizing box to pollute the sterilizing slender pipeline 4, and only clean air is allowed to enter the sterilizing box, so that the sterilized slender pipeline 4 can be stored in the sterilizing box for a long time.

The foregoing is merely a preferred embodiment of the invention, and it is to be understood that the invention is not limited to the form disclosed herein and is not to be considered as excluding other embodiments, but is capable of numerous other combinations, modifications and environments and is capable of modifications within the scope of the inventive concept, either by the foregoing teachings or by the teaching of the relevant art. And that modifications and variations which do not depart from the spirit and scope of the invention are intended to be within the scope of the appended claims.

Claims

1. A steam sterilization box, characterized in that: the sterilizing device comprises a box body and a box cover which are matched, wherein at least one group of sterilizing components are arranged between the box cover and the box body, each sterilizing component comprises a one-way valve and a sterilizing air bag, one end of each sterilizing air bag is communicated with the one-way valve, and the other end of each sterilizing air bag is provided with a pipeline connecting piece for installing a piece to be sterilized;

the one-way valve is a micropressure one-way valve, the sterilizing air bag is elliptical, a steam cavity is arranged in the sterilizing air bag and is communicated with the one-way valve, and the distance between the outer wall of the sterilizing air bag along the short axis direction and the steam cavity is smaller than the distance between the outer wall of the sterilizing air bag along the long axis direction and the steam cavity;

the box comprises a box body, wherein a box buckle is arranged on the left side surface and the right side surface of the box body, a groove A is arranged in the groove A, a mounting bracket is arranged in the groove A, a groove B is arranged on the left side surface and the right side surface of the box cover, a buckling position is arranged in the groove B, and the buckling position is buckled with the box;

the bottom of the box cover is provided with an annular sealing groove, a sealing ring A is arranged in the annular sealing groove, the box cover is provided with an indication card observation window and two ventilation windows, the indication card observation window is positioned in the middle of the box cover, and the two ventilation windows are respectively positioned at the left side and the right side of the indication card observation window;

the ventilation window sequentially comprises a locking buckle, a dustproof ventilation pad and a lower boss from bottom to top, wherein the lower boss and the box cover are integrally formed, the dustproof ventilation pad and the lower boss are locked through the locking buckle, at least four studs are arranged at the bottom of the lower boss, at least four through holes A matched with the studs are formed in the dustproof ventilation pad, and a plurality of ventilation holes are formed in the lower boss; the locking buckle comprises an annular buckle and a circular pressing plate, wherein an annular groove is formed in the pressing plate, a sealing ring B is arranged in the annular groove, a circular boss is arranged below the pressing plate, the circular boss is matched with an inner through hole C of the annular buckle, at least four waist-shaped holes A and at least four waist-shaped holes B are formed in the annular buckle, at least four through holes C which are in one-to-one correspondence with the waist-shaped holes A are formed in the pressing plate, studs penetrate through the through holes C and the waist-shaped holes A, screws are arranged in the waist-shaped holes B, the annular buckle is connected with the pressing plate through the screws, a plurality of through holes B are formed in the circular boss, and at least four baffles are arranged on the edge of the top surface of the annular buckle;

the indicator card observation window comprises an indicator card, an observation window cover and a transparent observation window body, wherein the indicator card is positioned between the observation window and the observation window cover, the observation window is connected with the observation window cover in a clamping way, and a plurality of vent holes are formed in the observation window cover; the observation window body is in a truncated cone shape, a conical hole matched with the observation window body is formed in the box cover, and the distance between the top surface of the observation window body and the bottom surface of the observation window body is smaller than that between the top surface of the box cover and the bottom surface of the observation window body;

during sterilization, firstly, an elongated pipeline to be sterilized is mounted on a pipeline connecting piece, a dustproof ventilation pad is placed under a box cover, a sealing ring B is pressed, a baffle is rotated to enable a waist-shaped hole A to be aligned with a through hole C, a stud penetrates through the waist-shaped hole A and the through hole C, an annular buckle and a pressing plate are movably connected through a screw in the waist-shaped hole B, the annular buckle can rotate around the center of the pressing plate, the rotatable maximum distance is smaller than the length of the waist-shaped hole A, the annular buckle is rotated to be clamped into a clamping groove on the stud, the locking buckle is fixed on the box cover through deformation thrust of the sealing ring B, and when the box cover is taken out, the annular buckle is only required to be opened and buckled to leave the clamping groove of the stud, and the locking buckle is automatically separated from the box cover under the deformation thrust of the sealing ring B;

the indication card is placed on the observation window cover, the observation window cover is clamped with the observation window body, the box cover is covered on the box body, the box buckle is rotated, the box buckle is clamped and fixed with the buckle position, the box body is sealed through the sealing ring A, and the box buckle can be communicated with the outside only through the air holes; then placing the sterilizing box into a vacuum gas sterilizer such as a hydrogen peroxide low-temperature plasma sterilizer, when the sterilizer starts vacuumizing, air in the sterilizing box is pumped out from the air holes, air in the sterilizing air bags is pumped out, then high-purity sterilizing steam such as hydrogen peroxide steam is injected, the sterilizing steam sequentially passes through the air holes, the dustproof ventilating cushion and the through holes B to enter the box body, the one-way valve is closed, and the sterilizing air bags are filled with the sterilizing steam through the slender pipeline, so that the atmospheric pressure is restored in the sterilizing box; vacuumizing again, extracting the sterilizing agent from the ventilating window of the sterilizing box and decomposing the sterilizing agent by plasma, and enabling external air to enter the sterilizing box again to finish sterilization; the sterilizing box can be directly taken out for storage after sterilization, and the ventilation window non-woven fabric of the ventilation window of the sterilizing box can prevent dirty gas and moisture from entering the sterilizing box to pollute the sterilizing slender pipeline, so that only clean air can enter.

2. A steam sterilization case according to claim 1, wherein: the box body is rectangular, and a plurality of rib plates are arranged on the inner bottom surface of the box body along the short side direction.

3. A steam sterilization case according to claim 1, wherein: the dustproof ventilation pad is non-woven fabric.