Body cavity fluid collecting and metering device for autopsy of forensic

Abstract

The utility model discloses a coelomic fluid collecting and metering device for autopsy by a forensic, a fluid taking unit is connected with a suction unit, the tail end part of a pipeline connected with the suction unit extends to the lower end position in a metering unit, one-way valves are respectively arranged at the upper end or the lower end of the suction unit, and an exhaust valve is arranged on a container. Before use, all the units are assembled and placed in a degerming sealed package and are taken out during use, then the liquid taking unit is immersed into body cavity liquid, the flexible telescopic part of the suction unit is held and continuously contracted and expanded, and the body cavity liquid is continuously sucked and conveyed into a container of the metering unit. And when the body cavity liquid reaches the required dosage, the operation is stopped, and the container is independently taken down or the whole device is sent to detection equipment for detection. According to the use process, the device is very convenient to use, and the pollution probability is greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the corpse examination body cavity fluid collection structure improvement technical field, especially a forensic autopsy body cavity fluid collection metering device. BACKGROUND

[0002] Forensic pathological identification refers to that pathological doctors use the technology of forensic pathology to identify or deduce through corpse external examination, corpse dissection inspection, tissue slice observation and the like. In actual work, it is necessary to collect and detect the body cavity fluid such as urine, bile and effusion of corpses. The tool commonly used in the prior art is a syringe. The needle of the syringe is inserted into the tissue, and then the plunger is pulled to suck the body cavity fluid into the syringe barrel. If the container of the syringe barrel is appropriate, it can be extracted once. If the required amount of body cavity fluid is large, it needs to be extracted multiple times and collected in a test tube, a measuring cup or other sealable plastic bag or bottle. The above-mentioned mode has the following problems: inconvenient operation; the needle is frequently inserted and pulled out, and the test tube, the measuring cup and the plastic bag with an open container are easily contaminated. In summary, there is an urgent need for a body cavity fluid collection metering device which is convenient and fast to use, avoids contamination and is accurate in measurement. SUMMARY

[0003] The utility model aims at overcoming the defects of the prior art and provides a forensic autopsy body cavity fluid collection metering device.

[0004] The utility model adopts the technical scheme that solves the technical problems:

[0005] A forensic autopsy body cavity fluid collection metering device is characterized in that it comprises a liquid taking unit, a sucking unit and a metering unit; the interface end of the needle is connected to one end of a flow guide pipe, the other end of the flow guide pipe is connected to a metering unit through the sucking unit and a pipeline;

[0006] The liquid taking unit is used to be put into the body cavity fluid;

[0007] The sucking unit can contract under the action of external force and deliver the gas and / or liquid in it to the metering unit through the pipeline. The sucking unit can suck the body cavity fluid from the liquid taking unit when it is inflated and reset.

[0008] The metering unit is used to contain the body cavity fluid and measure it.

[0009] Further, the liquid taking unit is a pipe body or a hose with a sharp puncture end.

[0010] Further, the sucking unit comprises end plates and a flexible expansion part, two end plates are respectively connected to the two ends of the flexible expansion part, and the openings provided on each end plate are respectively connected to the other end of the flow guide pipe and one end of the pipeline. The other end of the pipeline is connected to the metering unit.

[0011] Two openings are respectively provided with one-way valves or the pipes provided at the two openings are provided with one-way valves;

[0012] The two one-way valves can suck the body cavity liquid and transport the liquid into the metering unit.

[0013] Further, the metering unit comprises a hard or soft container, the container is provided with an exhaust valve for exhausting, and a scale for metering is arranged on the outer surface of the container.

[0014] Further, the pipeline is a flexible pipe.

[0015] Two openings are respectively provided with one-way valves.

[0016] The valve plate of the one-way valve close to the flow guide pipe can be opened to the inside of the flexible telescopic part, and the valve plate of the one-way valve close to the pipeline can be opened to the pipeline.

[0017] The technical effects achieved by the utility model are as follows:

[0018] In the utility model, the liquid taking unit is connected with the suction unit, the end of the pipeline connected with the suction unit extends to the lower end position in the metering unit, one-way valves are arranged on the upper end or the lower end of the suction unit, and an exhaust valve is arranged on the container. Before use, all the units have been assembled and placed in a sterilized sealed package, are taken out during use, then the liquid taking unit is immersed in the body cavity liquid, the flexible telescopic part of the suction unit is held and continuously shrunk and expanded, the body cavity liquid is continuously sucked and transported into the container of the metering unit, when the body cavity liquid reaches the required amount, the operation is stopped, the container is taken out alone or the whole device is sent to a detection equipment for detection. From the above use process, it can be seen that the device is very convenient to use, and the pollution probability is greatly reduced. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a use state schematic view of the utility model.

[0020] Figure 2 It is a sectional view of the utility model. Figure 1

[0021] Figure 3 It is an enlarged view of the suction unit of the utility model. Figure 2

[0022] Figure 4 It is a structure view of the one-way valve located outside the suction unit of the utility model. Figure 3 DETAILED DESCRIPTION

[0023] ​​​The utility model will be further described in detail below through specific embodiments, the following examples are only descriptive, not restrictive, and cannot limit the protection scope of the utility model.

[0024] A kind of forensic autopsy body cavity fluid collection metering device, as shown in the figure, including liquid taking unit 9, suction unit 12 and metering unit 1;The interface end of needle is connected with one end of flow guide pipe 10, the other end of the flow guide pipe is communicated with a metering unit by suction unit and pipeline 6 and 8.

[0025] Liquid taking unit is used to put into body cavity fluid;Suction unit can contract under external force and transport gas and / or liquid in it to metering unit by pipeline, and the suction unit can suck body cavity fluid from liquid taking unit when expanding reset;Metering unit is used to contain body cavity fluid and carry out metering.

[0026] The liquid taking unit is a tube or hose with a sharp puncture end. Among them, the tube with a sharp puncture end can be a stainless steel needle or a hard plastic needle, which is suitable for the collection of body cavity fluid in the tissue that needs to be punctured. The interface end of this structure can be a sleeve with internal threads, and the corresponding end of the flow guide pipe has external threads, which are screwed together or over-molded together. The hose can be a soft plastic tube, which is suitable for the collection of body cavity fluid in the tissue that does not need to be punctured and has an opening. The interface end of the plastic tube and the corresponding end of the flow guide pipe are over-molded together. Regardless of the structure, the length should be increased as much as possible, so that it can be placed in a deeper position and the collection of body cavity fluid is more complete.

[0027] The suction unit includes end plates 14 and a flexible expansion part 15, two end plates are connected to both ends of the flexible expansion part, and openings provided on each end plate are respectively communicated with the other end of the flow guide pipe 10 and one end of the pipeline 8, and the other end of the pipeline is communicated with the metering unit. One-way valves are respectively arranged at the two openings or the pipeline arranged at the two openings is provided with a one-way valve. The two one-way valves can allow the flexible expansion part to suck body cavity fluid and transport it into the metering unit. The flexible expansion part can be made of slightly soft rubber, and the end plate is made of slightly hard rubber at this time. The flexible expansion part can be compressed when held by hand and expanded to reset when the hand is released. The flexible expansion part can also be made of slightly thin plastic, and the end plate is made of slightly hard plastic. Whether it is rubber or plastic, it is required to have a certain strength, that is, it can expand to reset after contraction.

[0028] The structure of the above-mentioned one-way valve can be as shown in Figure 3 、 4 .

[0029] 1. The one-way valve is installed in the end plate, as shown in Figure 3 .

[0030] The end plate 14 near the flow guide pipe has an opening 19, the upper end of which is embedded with the end 18 of the flow guide pipe, the end of the flow guide pipe is in interference fit with the opening or is bonded to keep the seal of the two, the bottom surface of the end of the flow guide pipe is against the annular bead 16 formed on the inner wall of the opening, and a valve plate is arranged below the annular bead in the opening, which is used to cover the opening 17 in the center of the annular bead.

[0031] Similarly, the end plate 14 near the pipeline has an opening 19, the upper end of which is provided with an annular bead 16 and a valve plate 20, and the end 18 of the pipeline 8 is embedded in interference fit in the opening below the valve plate.

[0032] The reference numerals 11 and 13 in the structure are only joints for converting different pipe diameters.

[0033] 2. The one-way valve is arranged outside the end plate, as shown in Figure 4

[0034] One pipe 23 is embedded in interference fit in the openings of the two ends respectively, and one one-way valve 11 and 13 is tightly sleeved on the outer end of the two pipes respectively, and the through hole 22 in the outer end of each one-way valve 11 and 13 is embedded in interference fit with the flow guide pipe 10 and the pipeline 8 respectively.

[0035] The preferred scheme is the first structure, that is, one one-way valve is arranged at each of the two openings; the valve plate of the one-way valve near the flow guide pipe can be opened towards the inside of the flexible expansion part, and the valve plate of the one-way valve near the pipeline can be opened towards the pipeline.

[0036] The metering unit includes a hard or soft container, the lower end of the pipeline is arranged at the bottom of the container, an exhaust valve 3 for exhausting is arranged on the container, and a scale 5 for metering is arranged on the outer surface of the container. In the drawings, a hard plastic bottle is adopted, a bottle plug 4 is tightly sleeved on the upper end of the plastic bottle, a through pipe 2 is arranged in the bottle plug, the lower end of the through pipe is located at the lower end inside the plastic bottle, the upper end of the through pipe is connected with the pipeline, and the exhaust valve is also arranged in the bottle plug. In addition to the hard plastic bottle, a glass bottle, a plastic bag, a drainage box and other structure containers can also be adopted.

[0037] The pipeline uses a hose, which can be a complete one or two pipes connected with each other as shown in the drawings, for example, the adjacent ends of the pipelines 6 and 8 are tightly sleeved on the ends of a connecting pipe 7 respectively.

[0038] The working process of the utility model is as follows:

[0039] The sampling position is determined, and if the position has an opening, the liquid taking unit is a hose.

[0040] ​The device is taken out from the package, the hose is put into the tissue from the opening, the measuring unit of the plastic bottle is placed on the flat ground, and then the flexible extension of the suction unit is squeezed, released, squeezed, and released in a cycle.

[0041] The first contraction is to open the valve plate close to the pipeline, the gas enters the measuring unit through the pipeline and is discharged from the exhaust valve, and then when the flexible extension is released, the pressure inside the flexible extension is small, so the valve plate close to the liquid taking unit is opened and the body cavity liquid is sucked in. When the flexible extension is squeezed for the second time, the valve plate close to the liquid taking unit is in a closed state, and the valve plate close to the pipeline is in an open state, so the body cavity liquid is transported to the plastic bottle through the pipeline. Repeat continuously until the liquid level of the body cavity liquid in the plastic bottle reaches the required scale value.

[0042] After the operation is completed, the plastic bottle is removed or the entire device is sent to a detection equipment for detection or temporary storage.

[0043] As can be seen from the above use process, the device is placed in a sterilized package to avoid the influence of external pollutants on sampling, and a new device is used for sampling each time to ensure the accuracy of sampling. It is not only convenient to carry, but also convenient to use, accurate in measurement and easy to store.

Claims

1. A forensic autopsy body cavity fluid collection metering device characterized by: The device comprises a liquid taking unit, a suction unit and a metering unit; one end of a needle is connected to one end of a flow guide pipe, and the other end of the flow guide pipe is connected to a metering unit through a pipeline; The liquid taking unit is used to put into the body cavity liquid; The suction unit can be contracted under external force and deliver the gas and / or liquid in the suction unit to the metering unit through the pipeline; the suction unit can suck the body cavity liquid from the liquid taking unit when it is inflated and reset; The metering unit is used to contain the body cavity liquid and carry out metering.

2. A body cavity fluid collection gauge as defined in claim 1, wherein: The liquid taking unit is a tube or hose with a sharp puncture end.

3. A body cavity fluid collection gauge according to claim 1 or 2, wherein: The suction unit comprises end plates and a flexible expansion part, two end plates are respectively connected to two ends of the flexible expansion part, and two openings respectively provided on the two end plates are respectively connected to the other end of the flow guide pipe and one end of the pipeline, and the other end of the pipeline is connected to the metering unit; One-way valves are respectively arranged at the two openings or the pipeline provided with the two openings is provided with a one-way valve; The two one-way valves can make the flexible expansion part suck the body cavity liquid and deliver it to the metering unit.

4. A body cavity fluid collection gauge as defined in claim 3, wherein: The metering unit comprises a hard or soft container, an exhaust valve is arranged on the container for exhausting, and a scale is arranged on the outer surface of the container for metering.

5. A forensic autopsy body cavity fluid collection gauge as defined in claim 4, wherein: The pipeline is a hose.

6. A body cavity fluid collection gauge as claimed in claim 4 or 5, wherein: One-way valves are respectively arranged at the two openings; The valve plate of the one-way valve close to the flow guide pipe can be opened to the inside of the flexible expansion part, and the valve plate of the one-way valve close to the pipeline can be opened to the pipeline.

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