Collector for microorganisms in water body

Abstract

The utility model relates to a collector, in particular to a water microorganism collector. The device comprises a microorganism collector and a filtrate collecting bottle communicated with the microorganism collector through a sterile silica gel hose. One end of the sterile silica gel hose extends into the filtrate collecting bottle, the other end of the sterile silica gel hose passes through the microorganism collector and then is fixed on the telescopic collecting rod, and a sterile silt filtering head is arranged at the end part of the other end of the sterile silica gel hose; the filter is used for filtering out large-particle substances in water. A peristaltic pump is arranged at the section of the sterile silica gel hose between the telescopic collecting rod and the microorganism collector and is used for sucking a water sample. The requirement for on-site collection of microorganisms of different water depths and different species is met, it is guaranteed that the volume of filtered liquid is accurate and controllable through the configured flow sensor and the visual filtrate collection bottle, and personal errors between samples are avoided. And moreover, cross contamination among samples can be avoided to the maximum extent, and individuation and applicability of water microorganism collection are realized.

Description

Technical Field

[0001] The utility model relates to a collector, in particular to a water microorganism collector. Background Art

[0002] In forensic practice, human corpses can be found in various aquatic environments, such as rivers, streams, lakes, ponds, oceans, and various large water storage containers. For bodies found in water, the primary task of forensic scientists is to determine the cause of death and infer the time and location of submersion. Due to the unique characteristics of the aquatic environment, postmortem changes in aquatic bodies differ from those in terrestrial bodies, manifesting as rapid, unstable, and irregular progression, lacking specific signs. Furthermore, current methods are significantly influenced by the subjective nature of the examiner, which poses significant challenges in effectively addressing these issues.

[0003] In recent years, with the rapid development of high-throughput sequencing technology, the crucial role of microorganisms in aquatic corpse identification has been increasingly confirmed. Detection of drowning fluid-derived microorganisms in cadaveric organs and tissues can aid in the diagnosis of drowning and infer the location of entry into the water. Therefore, the collection of aquatic microorganisms is crucial. Currently, there is a lack of portable aquatic microbial collection devices specifically designed for forensic investigations to meet practical needs.

[0004] At present, most devices used to collect water microorganisms have simple structures, poor preservation effects, and difficulty in completing large-scale sampling. They mainly serve in the fields of environmental protection and aquatic biological research, and cannot meet the needs of forensic practice for collecting different water depths and different species. Summary of the Invention

[0005] The utility model aims to solve the defects of the prior art and provides a water microorganism collector.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical solution: a water microorganism collector, comprising a microorganism collector and a filtrate collection bottle connected to the microorganism collector through a sterile silicone hose.

[0007] One end of the sterile silicone hose is inserted into the filtrate collection bottle, and the other end of the sterile silicone hose is fixed on the telescopic collection rod after passing through the microbial collector (filter). The other end of the sterile silicone hose is provided with a sterile sediment filter head; it is used to filter out large particles in the water.

[0008] A peristaltic pump is provided on the sterile silicone hose section between the telescopic collection rod and the microorganism collector for drawing water samples.

[0009] Furthermore, the microorganism collector adopts a container-like structure, the top and bottom surfaces of which are respectively provided with interfaces for connecting to a sterile silicone hose (i.e., through holes), and at least two layers of sterile filter membranes are provided in the container-like structure according to actual needs, and the sterile filter membranes are arranged in sequence from top to bottom according to the pore size gradient.

[0010] Specifically, a sterile filter membrane is positioned horizontally, covering the cross-section of the container-like structure. A sterile silicone hose is segmented, with one segment connected to the inlet of the microorganism collector, and the outlet of the microorganism collector connected to another segment of sterile silicone hose. The filtrate in the hose enters the collector from the top, where it passes through the filter membrane under pressure, achieving a filtration effect (microorganisms are retained on the filter membrane). The filtrate then enters another segment of sterile silicone hose.

[0011] Furthermore, the telescopic collection rod can adjust its length according to the required collection depth, and the sterile silicone hose is fixed by a magnetic buckle.

[0012] Furthermore, the filtrate collecting bottle is also equipped with a vacuum filtration pump for filtering water samples.

[0013] Furthermore, the microorganism collector, filtrate collection bottle, vacuum filtration pump, and peristaltic pump are all installed in a box. A rubber foot cup is provided at the bottom of the box, and a level is provided on the top of the box to maintain levelness.

[0014] Furthermore, the filtrate collecting bottle is made of a visible transparent material and is provided with a liquid level sensor for detecting the liquid level to prevent the filtrate from overflowing.

[0015] Furthermore, a pressure sensor and a flow sensor are provided on the sterile silicone hose to monitor pressure and flow.

[0016] Furthermore, a handle is provided on the top of the box body, and a through hole for the sterile silicone hose to pass through is provided on the side wall of the box body.

[0017] Furthermore, a fixing buckle is provided on one side of the top of the telescopic collection rod.

[0018] Compared with the prior art, the utility model has beneficial effects.

[0019] This new device meets the needs of on-site collection of microorganisms of varying water depths and species. Through its configured flow sensor and visual filtrate collection bottle, it ensures accurate and controllable filtered liquid volume, avoiding human error between samples. Furthermore, it minimizes cross-contamination between samples, achieving personalized and adaptable water microbial collection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. The scope of protection of the present invention is not limited to the following description.

[0021] Figure 1 It is an overall schematic diagram of the water microorganism collector of the utility model.

[0022] Figure 2 This is a schematic diagram of the bottom surface of the sterile sediment filter head.

[0023] Figure 3 This is a schematic diagram of the sterile silicone hose connection.

[0024] In the figure, 1 is a fixing buckle, 2 is a spirit level, 3 is a magnetic hose buckle, 4 is a sterile silicone hose, 5 is a ruler, 6 is a telescopic collection rod, 7 is a sterile sediment filter head, 8 is a handle, 9 is a rechargeable lithium battery, 10 is a peristaltic pump, 11 is a pressure sensor, 12 is a flow sensor, 13 is a sterile filter membrane, 14 is a microorganism collector, 15 is a vacuum filtration pump, 16 is a liquid level sensor, 17 is a rubber foot cup, 18 is a filtrate collection bottle, 19 is a filter screen, and 20 is a sterile equal-diameter straight-through connector. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and beneficial effects of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in combination with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0026] like Figure 1 As shown, the present invention includes a microorganism collector 14 and a filtrate collection bottle 18 connected to the microorganism collector 14 via a sterile silicone hose 4. One end of the sterile silicone hose 4 extends into the filtrate collection bottle 18, and the other end of the sterile silicone hose 4 is fixed to a telescopic collection rod 6 after filtering through the microorganism collector 14. The telescopic collection rod adopts a telescopic rod structure and is marked with a ruler to indicate its extension length.

[0027] The other end of the sterile silicone hose 4 is provided with a sterile sediment filter head 7; used to filter out large particles in the water. Figure 2 As shown, the sterile sediment filter head 7 is equipped with a filter screen and is detachably connected to the sterile silicone hose 4. Specifically, the sterile sediment filter head 7 is connected to the end of the sterile silicone hose 4 to provide a preliminary filtration effect. This can be replaced at any time according to actual conditions. This prevents the pipe from being clogged by foreign matter in the water, which could reduce the efficiency of microbial collection, and also reduces the possibility of cross-contamination between different samples.

[0028] like Figure 3As shown, this embodiment is equipped with a disposable sterile silicone hose 4, which, on the one hand, reduces the risk of contamination between samples during the microbial collection process; on the other hand, the hose length can be adjusted arbitrarily according to the collection needs, and different sections of hoses can be connected through equal-diameter straight-through connectors, while ensuring high air tightness of the hose, maximizing the adjustability of the water sample collection module.

[0029] A peristaltic pump 10 is provided on the section of the sterile silicone hose 4 between the telescopic collection rod 6 and the microorganism collector 14 for drawing water samples.

[0030] In Example 1, a microorganism collector 14 is constructed as a container with interfaces on its top and bottom surfaces for connecting to a sterile silicone hose 4. Within the container, at least two sterile filter membranes 13 are positioned, arranged in a pore size gradient from top to bottom. Specifically, the sterile filter membranes 13 are positioned horizontally, covering the cross-section of the container, through which the filtrate passes. The sterile silicone hose 4 is also equipped with a pressure sensor 11 and a flow sensor 12 to monitor pressure and flow.

[0031] Example 2: The telescopic collection rod 6 can adjust its length according to the required collection depth, and the sterile silicone hose 4 is fixed by a magnetic buckle 3. A fixing buckle 1 is provided on one side of the top of the telescopic collection rod 6.

[0032] Example 3: The filtrate collecting bottle 18 is also equipped with a vacuum filtration pump 15 for filtering water samples. The filtrate collecting bottle 18 is provided with a liquid level sensor 16 to prevent the filtrate from being overloaded and entering the vacuum filtration pump 15 to damage the instrument.

[0033] In Example 4, a microorganism collector 14, a filtrate collection bottle 18, a vacuum filtration pump 15, and a peristaltic pump 10 are all installed in a box. The box has rubber feet 17 at the bottom and a spirit level 2 at the top for maintaining levelness. A handle 8 is provided on the top of the box, and a through-hole is provided in the side wall for the passage of a sterile silicone hose 4.

[0034] The utility model adopts a split structure to achieve professional water microorganism collection. It can maintain a high collection efficiency, enhance the convenience of instrument use, and reduce the cost of use. The entire device consists of a collection rod and a collection box. When in use, first connect the sterile sediment filter head, sterile silicone hose, microorganism collector and other components. The peristaltic pump and vacuum filtration pump work at the same time to create a low-pressure environment in the sterile silicone hose. Through the collection rod, the sterile silicone hose is sent to the target water depth. Under the action of pressure, the water sample is collected and then enters the microorganism collector through the hose to filter, enrich, and collect a variety of microorganisms (fungi, bacteria, etc.). After the collection is completed, the filter membrane in the microorganism collector is recovered and preserved for inspection, thereby realizing the rapid on-site collection of different water microorganisms in forensic practice.

[0035] The following describes the use of the present invention in conjunction with the accompanying drawings and technical solutions:

[0036] When in use, first place the collection box on a horizontal surface, and adjust the collection box body to a horizontal state through the rubber foot cup 17.

[0037] Assemble the microorganism collector 14 according to your collection needs (with a gradient of decreasing filter membrane pore size from top to bottom). Connect the different sections of sterile silicone hose 4 and sterile sediment filter 7 using equal-diameter straight-through connectors, and load them onto the telescopic collection rod 6, peristaltic pump 10, and microorganism collector 14. Adjust the length of the telescopic rod according to your collection needs, and secure the sterile silicone hose 4 to the rod using the magnetic hose clip 3.

[0038] Extend the telescopic rod into the water body and determine the depth of lowering based on the scale. Once the target water depth is reached, adjust the angle of the telescopic rod using the spirit level 2 and secure the collection rod to the hull or railing using the fixing clip 1 to begin collecting microorganisms. Turn on the peristaltic pump 10 and vacuum filtration pump 15. Under pressure, water will enter the sterile silicone hose 4 in the direction indicated by the arrow (indicated by the dotted line), flow through the microorganism collector 14, and ultimately enter the filtrate collection bottle 18. This device can monitor the pressure in the sterile silicone hose 4 in real time, setting a threshold to prevent excessive pressure from damaging the hose or the instrument. Furthermore, the filtrate collection bottle 18 at the end of the device is equipped with a liquid level sensor 16 to monitor the liquid level in the collection bottle and prevent excessive filtrate from entering the vacuum filtration pump 15 and damaging the instrument. The flow sensor 12 in the device is attached to the surface of the sterile silicone hose 4, away from the liquid, and can monitor the liquid flow rate. The entire device can be equipped with a stand-alone rechargeable lithium battery 9, making it convenient for on-site sampling in the field, greatly improving the convenience of the instrument. During operation, the peristaltic pump 10 at the front end "sucks" water, while the vacuum filtration pump 15 at the back end "extracts" water, ensuring strong water filtration efficiency. The safety and reliability of the device are guaranteed by the combined action of multiple sensors (pressure sensor 11, flow sensor 12, and liquid level sensor 16).

[0039] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that the technical solutions described in the above embodiments can still be modified, or some or all of the technical features therein can be replaced by equivalents. Therefore, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope defined by the claims of the present invention.

Claims

1. A water microorganism collector, comprising a microorganism collector (14), and a filtrate collection bottle (18) connected to the microorganism collector (14) via a sterile silicone hose (4); Its characteristics are: One end of the sterile silicone hose (4) extends into the filtrate collection bottle (18), and the other end of the sterile silicone hose (4) is fixed on the telescopic collection rod (6) after passing through the microorganism collector (14). The other end of the sterile silicone hose (4) is provided with a sterile sediment filter head (7) for filtering out large particles in the water. A peristaltic pump (10) is provided on the sterile silicone hose (4) section between the telescopic collection rod (6) and the microorganism collector (14) for drawing water samples.

2. The water microorganism collector according to claim 1, characterized in that: The microorganism collector (14) adopts a container-like structure, the top and bottom surfaces of which are respectively provided with interfaces for connecting to a sterile silicone hose (4), and at least two layers of sterile filter membranes (13) are provided in the container-like structure.

3. The water microorganism collector according to claim 1, characterized in that: The telescopic collection rod (6) can adjust its length according to the required collection depth, and fixes the sterile silicone hose (4) via a magnetic buckle (3).

4. The water microorganism collector according to claim 1, characterized in that: The filtrate collecting bottle (18) is also equipped with a vacuum filtration pump (15) for filtering water samples.

5. The water microorganism collector according to claim 1, characterized in that: The microorganism collector (14), the filtrate collecting bottle (18), the vacuum filtration pump (15), and the peristaltic pump (10) are all installed in a box. A rubber foot cup (17) is provided at the bottom of the box, and a level (2) is provided at the top of the box for maintaining levelness.

6. The water microorganism collector according to claim 1, characterized in that: The filtrate collecting bottle (18) is made of a visible transparent material and is provided with a liquid level sensor (16) for detecting the liquid level to prevent the filtrate from overflowing.

7. The water microorganism collector according to claim 1, characterized in that: The sterile silicone hose (4) is also provided with a pressure sensor (11) and a flow sensor (12) for monitoring pressure and flow.

8. The water microorganism collector according to claim 5, characterized in that: A handle (8) is provided on the top of the box body, and a through hole for the sterile silicone hose (4) to pass through is provided on the side wall of the box body.

9. The water microorganism collector according to claim 1, characterized in that: A fixing buckle (1) is provided on one side of the top of the telescopic collection rod (6).

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