EA029411B1 - Device for cleaning and sterilization of medical tools - Google Patents

Abstract

The invention is related to medical equipment, in particular, to equipment for heat treatment of medical tools. The objective of the invention is provision of a multi-place device for steam cleaning and sterilization of small-diameter bores in medical tools. The objective is attained by provision of a device for cleaning and sterilization of medical tools including steam cleaning and sterilization that comprises a pressure chamber with a lid, a safety valve, temperature, pressure and solution level sensors, and a control panel, the pressure chamber with a lid containing solution and an immersed heating element, wherein the lid of the pressure chamber has recesses with through holes for placement of through-bore tools, and the tools are fixed by a clamping plate having a number of slots corresponding to the number of tubular tools, the clamping plate being mounted on a movable suspended member.

Description

The invention relates to medical equipment, in particular to equipment for the heat treatment of medical instruments. The purpose of the invention is the creation of a multi-site device for steam cleaning and sterilization of small-diameter channels in medical instruments. This goal is achieved by the fact that the device for cleaning and sterilizing medical instruments, including steam cleaning and sterilization, containing a pressure chamber with a lid, a safety valve, temperature sensors, pressure sensors, level of the solution and a control panel, in the pressure chamber with a lid is a solution and the immersion heater is located element, while in the lid of the pressure chamber there are holes with through holes for installation of tools with through channels, and fixing of tools is carried out by pressing oh pad with grooves by the number of tubular tools mounted on a movable suspension.

029411

The invention relates to medical equipment, in particular to equipment for the heat treatment of medical instruments.

The problem of equipping medical facilities with modern equipment that makes it easier and safe for nurses to perform cleaning and washing operations in hard-to-reach places and channels of a complex medical instrument - to move "from brushes and ruffs to ultrasound and new technologies" is quite urgent and relevant [1].

"The problem is especially acute due to the presence of operating rooms that are not equipped, poorly equipped with washing and sterilization equipment, or equipped with equipment that do not provide guaranteed quality of pre-sterilization cleaning and sterilization efficiency of surgical instruments. As a rule, presterilization cleaning of surgical instruments is performed manually in many operating rooms In these cases, even the most advanced sterilizers do not save the situation, since the effectiveness of sterilization yamuyu associated with cleaning tools quality "[2].

It should be noted that the ultrasonic equipment for presterilizing treatment of medical products provides high quality cleaning of external surfaces and does not solve the problem of cleaning holes of small diameter and thin channels.

The washing and disinfection machine фδ 500 (Italy) [3] can be used most effectively for cleaning and disinfecting canals in medical instruments. The machine has a wide range of capabilities for processing various products and tools for special programs. One of the applications is the processing of complex channels of laparoscopic instruments using individual nozzles and nozzles installed on flexible hoses special for each instrument.

After the nozzle tool is installed in the channel of the tool and fixed in the hose, a cleaning solution is supplied to the hose under pressure and the channels are efficiently cleaned for 100-120 minutes. The disadvantage is the individual complex installation of nozzles and the inability to install the nozzle into the hole of the channel of small diameter.

Known steam sterilizer [4], which includes a housing with a through sterilization chamber, tightly closed at the ends with vertically movable doors with a drive and units sealing them at the ends of the housing, a steam jacket made outside the housing around the sterilization chamber and the steam generation unit is made in the form of electric heating elements installed in the lower part of the steam jacket, the cavity of which is communicated in the upper part with the sterilization chamber and with the source water. The steam sterilizer is equipped with water level, pressure, temperature sensors and a safety valve. Steam sterilizer is intended for sterilization of large-sized products and cannot be used for channel processing in medical instruments.

Known steam sterilizer [5] (prototype), including a pressure chamber with a lid and insert, a safety valve, pipelines for supplying water and steam, with holes for the passage of steam in the upper part of the insert. Steam sterilizer is intended for sterilization of large-sized products and cannot be used for channel processing in medical instruments.

The purpose of the invention is the creation of a multi-site device for steam cleaning and sterilization of small-diameter channels in medical instruments.

This goal is achieved by the fact that the device for cleaning and sterilizing medical instruments, including steam cleaning and sterilization, containing a pressure chamber with a lid, a safety valve, temperature sensors, pressure sensors, solution level and a control panel, in a pressure chamber with a lid in which the solution and there is an immersion heating element, with holes with through holes in the lid of the pressure chamber, for installation of tools with through channels, and fixing of the tools Xia pressure pad with the slots on the number of tubular instruments installed on mobile suspension.

The device consists of a pressure chamber 1, hermetically closed lid 2. In the pressure chamber 1, a heating element 3 is installed, connected to the control unit 4 (CU), which is powered by a 220 V AC network. On the cover 2 a safety valve 5 is installed, driven a ball valve 6 for filling the solution, a pressure sensor 7 and a temperature sensor 8. In the lid 2 there are holes 9 with through holes for mounting the tubular instrument 10 being processed (for example, guides of biopsy needles, puncture needles, laparoscopic tool). Sealing rings 11 are installed on the bottom of the wells 9. A pressure pad 13 is installed on the pressure chamber 1 on the movable (for example, parallelogram) suspension 12, in which grooves 14 are made to grip and fix the tubular tool 10. The pressure pad 13 is connected by means of a hinge thrust 15 rod 16 reversing drive 17. On the side wall of the pressure chamber 1 is installed sensor 18 of the upper level of the solution and the sensor 19 of the lower level of the solution. On the bottom of the pressure chamber 1, a drainage ball valve 20 is installed. The cavity of the pressure chamber 1 is filled with a treatment solution, which is used, for example, by means of Krystal-Μδ cleaning agent (Production RB). The device is installed in a fume hood 21. The device pa- 1 029411

bots as follows.

The cavity of the pressure chamber 1 is filled with a solution. The reversing drive 17 is turned on and the pressure pad 13 is shifted to the extreme left position, the wells 9 are released. The work tubular tools 10 are placed in the wells 9. Then the reverse drive 17 is turned on in the opposite direction, the pressure pad 13 is moved to the right position, tubular tools 10 are captured by the grooves 14 and at the same time tightly pressed against the sealing rings 11, ensuring the tightness of the connection. Include the heating element 3, and the solution in the cavity of the pressure chamber 1 is brought to a boil. Steam is released, the pressure in the cavity of the pressure chamber 1 rises, steam under pressure of 0.2-0.3 MPa at a temperature of 120-140 ° C penetrates the channels of medical instruments and steam jets containing components of a cleaning agent (for example, sodium metasilicate, complexing agents, Surfactants, etc.), produce intensive cleaning and sterilization of the inner surface of the through channels. Pressure and temperature are monitored by pressure sensor 7, temperature sensor 8 and are regulated by the CU 4 in the specified range. The safety valve 5 limits the pressure above 0.3 MPa. The control of the upper and lower levels of the solution is carried out by the CU 4 according to the readings of the sensor 18 of the upper level of the solution and the sensor 19 of the lower level of the solution. After the end of the cleaning cycle (10-15 min), the heating element 3 is turned off, the vapor pressure drops, the reversing drive 17 is turned on, the pressure pad 13 moves to the left, rises and releases the tubular tools 10, which are removed manually and passed to the washing operation. Replacement of the solution is carried out with the help of drive ball valves 6, 20.

BU 4 allows you to adjust the voltage in the circuit of the heating element 3 and to maintain the pressure in the cavity of the pressure chamber 1 in the range of 0.2-0.3 MPa. For 10-15 minutes, a complete cleaning and disinfection of the surface of the instrument channels is performed.

Sources of information taken into account when making the application

1. Sarkisov V.A. From brushes and ruffs to ultrasound and new technologies. Journal "Main nurse", № 7, 2005.

2. Savenko S.N. Organization of processing surgical instruments operating in the conditions of modern requirements of infectious and environmental safety of patients and medical personnel The monthly magazine "GlavVrach", № 8, 2012.

3. Instructions, operating manual "Washing and Diesel-Filling Machine Όδ 500", Via Balegante, 27, 31039 Riese Pio X ⁰ (TV), Italy.

4. RF patent № 2161506, IPC A 61L 2/06, 2001.

5. RF patent №2067455, IPC A 61L 2/06, 1996.

Claims (1)

CLAIM A device for cleaning and sterilizing medical instruments, including steam cleaning and sterilization, containing a pressure chamber with a lid, a safety valve, temperature, pressure, solution level sensors and a control panel, characterized in that there is a solution in the pressure chamber with a lid, at the same time in the lid of the pressure chamber there are holes with through holes for the installation of tools with through channels, and the fixation of the tools is carried out with a pressure pad with s according to the number of tubular instruments installed on the mobile suspension.