CN204542967U - The gathering-device of a kind of portable tube chamber eluent microorganism - Google Patents

Abstract

A portable tube lumen eluent microbe collection device belongs to the technical field of detection of disinfection effects of tube cavity medical devices. The utility model designs a portable and closed lumen eluate microbe collection device, which is composed of four parts: a sample collection tube, a residual liquid box, a negative pressure pump chamber, and a battery chamber. Due to the downward extension of the conduit, the eluent will not flow down the wall of the collection tube, but directly onto the filter membrane; at the same time, due to the negative pressure, the filter membrane is also concave, and the eluent It will be stored in the range of the filter membrane without touching the surrounding tube walls; in this way, the loss of the eluent flowing through the tube wall during the sampling process can be reduced, and the detection concentration of microorganisms can be increased, which is closer to the real situation. The sampling process is closed, which greatly reduces the possibility of sample contamination. The device is portable, and sampling can be completed on site.

Description

A portable device for collecting microbes in lumen eluate

technical field

A portable lumen eluent microorganism collection device belongs to the technical field of detection of disinfection effects of lumen medical devices.

Background technique

In the medical industry, there are many lumen-type medical devices used in clinical medicine, such as endoscopes and urinary catheters. The interior of the lumen of these medical devices is invisible to the naked eye, the lumen is slender, it is difficult to clean, and it is easy to breed and retain bacteria and other microorganisms. Therefore, testing the disinfection effect of lumen medical devices has practical significance for reducing the risk of clinical infection. The current disinfection effect sampling method is mainly pure manual sampling, the sampling process is open, the sample is easily contaminated, and cannot accurately reflect the disinfection effect of the lumen. There is also a closed peristaltic pump sampling method. Although the sampling process is closed, which greatly reduces the possibility of sample contamination, the sampling equipment is heavy and it is basically impossible to sample on site. Aiming at the above disadvantages, the present invention designs a portable and closed tube lumen eluate microbe collection device.

Contents of the invention

The purpose of the utility model is to design a portable and closed tube lumen eluate microorganism collection device, which is used for the detection of the disinfection effect of tube cavity medical devices.

The technical scheme of the utility model: a portable lumen eluent microorganism collection device, the device consists of a sample collection tube (1), a residual liquid box (2), a negative pressure pump chamber (3), and a battery chamber (4) It consists of four major parts; the sample collection tube (1) is composed of an interface (5), a conduit (6), a filter element (7), and a waste liquid tube (8). The lower end of the interface (5) is connected to the conduit (6), and the conduit (6) ) lower end is suspended above the filter element (7), and the nozzle at the lower end of the conduit (6) is not in contact with the wall of the sample collection tube (1), the lower end of the filter element (7) is connected to the waste liquid pipe (8), and the middle of the filter element (7) is recessed , covered with a filter membrane, the filter membrane has a certain degree of elasticity, and it is also concave under the action of negative pressure. The collection tube (1) is sealed in a plastic bag after being sterilized; the residual liquid box (2) is a top with a A waste liquid flow inlet (9) and a plastic bottle of an exhaust port (10); a 6-volt miniature negative pressure pump (12) is inside the negative pressure pump chamber (3), and the suction port of the negative pressure pump is connected with the residual liquid The exhaust port of the box (2) is connected with a hose (11), and a switch (13) for controlling the operation of the pump is installed on one side of the negative pressure pump compartment (3); there are 4 sections in the battery compartment (4) A 1.5-volt AA battery connected in series supplies power to the negative pressure pump.

When in use, open the plastic bag of the collection tube (1), first connect the interface (5) to one end of the lumen to be sampled, and then turn on the switch (13). At this time, the entire closed lumen is in a negative pressure state. Then the filter element (7) is leveled, and the eluent is injected into the lumen to be sampled. After the eluate flows out from the sampled lumen, it flows to the concave filter membrane through the catheter (6). Then remove the interface (5) and waste liquid tube (8), seal the plastic bag, pour out the residual liquid, and complete the on-site collection of a lumen eluate sample.

Beneficial effects of the utility model: since the conduit (6) extends downward, the eluent does not flow down along the wall of the collecting pipe, but flows directly onto the filter membrane. At the same time, due to the negative pressure, the filter membrane is also sunken, and the eluent will be stored in the range of the filter membrane without touching the surrounding tube walls. In this way, the loss of the eluent flowing through the tube wall during the sampling process can be reduced, and the detection concentration of microorganisms can be increased, which is closer to the real situation. And the sampling process is closed, reducing pollution.

Description of drawings

Fig. 1 is a schematic diagram of the device for collecting microorganisms in the portable lumen eluate of the device. 1. Sample collection tube, 2. Residual liquid box, 3. Negative pressure pump compartment, 4. Battery compartment, 5. Interface, 6. Conduit, 7. Filter element, 8. Waste liquid tube, 9. Waste liquid flow inlet, 10, Exhaust port, 11, flexible pipe, 12, miniature negative pressure pump, 13, the switch of negative pressure pump.

Detailed ways

Example 1

The device consists of four parts: sample collection tube (1), residual liquid box (2), negative pressure pump compartment (3), and battery compartment (4); the sample collection tube (1) is composed of an interface (5), a conduit ( 6), filter element (7), waste liquid pipe (8), the filter element (7) is sunken in the middle, covered with a filter membrane, the filter membrane has a certain elasticity, and is also sunken under the action of negative pressure, the collection pipe ( 1) Sealed in a plastic bag after disinfection; the residual liquid box (2) is a plastic bottle with a waste liquid inlet (9) and an exhaust port (10) on the top; the negative pressure pump chamber (3) is A 6-volt miniature negative pressure pump (12), the suction port of the negative pressure pump is connected with the exhaust port of the residual liquid box (2) with a hose (11), and one side of the negative pressure pump chamber (3) is installed There is a switch (13) for controlling the work of the pump; in the battery compartment (4) are 4 AA batteries of 1.5 volts connected in series to supply power to the negative pressure pump.

Example 2

When in use, open the plastic bag of the collection tube (1), first connect the interface (5) to one end of the lumen to be sampled, and then turn on the switch (13). At this time, the entire closed lumen is in a negative pressure state. Then the filter element (7) is leveled, and the eluent is injected into the lumen to be sampled. After the eluate flows out from the sampled lumen, it flows to the concave filter membrane through the catheter (6). Then remove the interface (5) and waste liquid tube (8), seal the plastic bag, pour out the residual liquid, and complete the on-site collection of a lumen eluate sample.

Claims (1)

1. a gathering-device for portable tube chamber eluent microorganism, is characterized in that this device is made up of sample collection tube (1), residual liquid box (2), negative pressure pump storehouse (3), battery compartment (4) four major part; Wherein sample collection tube (1) is made up of interface (5), conduit (6), filter element (7), sewer pipe (8), interface (5) lower end connecting duct (6), conduit (6) lower end is suspended from filter element (7), and conduit (6) the lower end mouth of pipe does not contact with sample collection tube (1) tube wall, filter element (7) lower end connects sewer pipe (8), filter element (7) intermediate recess, on be covered with filter membrane, filter membrane has certain elasticity, also recessed under the effect of negative pressure, collecting pipe (1) is sealed in plastic packaging bag after sterilization; Residual liquid box (2) is the plastic bottle that a top has a waste liquor stream import (9) and an air vent (10); Be the Miniature negative pressure pump (12) of 6 volts in negative pressure pump storehouse (3), the air entry of negative pressure pump is connected with a flexible pipe (11) with the air vent of residual liquid box (2), and a switch in order to control pump work (13) is equipped with in a side of negative pressure pump storehouse (3); Be No. 5 batteries of 1.5 volts of 4 joint series connection in battery compartment (4), power to negative pressure pump.