CN218792281U - Blood culture collection system - Google Patents
Blood culture collection system Download PDFInfo
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- CN218792281U CN218792281U CN202222951065.7U CN202222951065U CN218792281U CN 218792281 U CN218792281 U CN 218792281U CN 202222951065 U CN202222951065 U CN 202222951065U CN 218792281 U CN218792281 U CN 218792281U
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Abstract
The utility model relates to a blood culture collection device, which comprises a three-way piece, a blood sampling needle head, an injector and a blood injection needle head, wherein the three-way piece is provided with a first connecting port, a second connecting port, a third connecting port and a switch valve, and the switch valve is used for communicating any two of the first connecting port, the second connecting port and the third connecting port; the tail part of the blood sampling needle head is connected with the first connector, the side wall of the tube body of the injector is provided with scale marks, and the injection port is connected with the second connector; the blood injection needle is connected with the third connecting port; the device is connected blood sampling syringe needle, syringe and the syringe needle of annotating the blood respectively through the three interface of tee bend spare to through the break-make of pipeline between tee bend spare control syringe and blood sampling syringe needle, the syringe needle of annotating the blood, can realize quantitative blood sampling and the smooth switching operation of pollution-free sample of staying, guarantee the blood and cultivate the accuracy of sample staying volume of getting and the pollution-free of sample, guarantee the reliability of blood culture result.
Description
Technical Field
The utility model relates to a blood culture collection system.
Background
Blood culture (blood culture for short) is one of the most important examinations in clinical microbiology laboratories, is an important standard for diagnosing bloodstream infection and bacteremia, and is a common operation for clinical medical care personnel, but the pollution rate and the blood culture positive rate of blood culture can be directly influenced by artificial reasons in the operation.
Blood culture contamination rate was defined as: the proportion of the number of the contaminated blood culture samples to the total number of the blood culture samples in the same period. Is mainly related to improper operation in the process of collecting specimens by medical staff. The pollution rate is controlled to be less than or equal to 3 percent, once the pollution rate exceeds the standard, the reasons can be comprehensively found from various aspects such as hand hygiene, blood sampling process and the like in time, and the pollution rate can be communicated with clinical medical care personnel in time and retrained if necessary.
The most important factor influencing the positive rate of blood culture is the amount of blood collected, and generally, each set of blood culture comprises an aerobic bottle and an anaerobic bottle, the amount of blood collected in each set is 16-20 ml, and 8-10 ml of blood is required in each bottle. When the amount of blood per bottle is less than 5ml, false negatives or microbial growth delays may occur. When more than 10ml per vial, false positives in culture may result due to the large amount of background CO2 produced by the leukocytes.
In the current clinical blood culture collection, the blood culture operation is mainly realized by the following two ways:
the mode adopts the syringe to connect the hypodermic needle and directly take blood, and although this mode can guarantee the blood sampling volume, owing to need inject the blood reinjection into the blood culture bottle through the disinfection bottleneck in the syringe after the blood sampling is finished, so carry the field planting fungus on patient's skin and the operator on hand into the blood culture bottle easily on the blood sampling syringe needle, lead to the sample pollution, so the operation also causes the emergence of needle stick wound easily simultaneously.
The other mode adopts the blood taking needle to directly collect blood by using the negative pressure of the blood culture bottle, but because the negative pressure of the blood culture bottle is not constant, 8-10 ml of blood in each bottle which meets the requirements of guidelines cannot be accurately achieved, and the control on the blood volume is not strict enough, so that the positive rate of the blood culture result is seriously influenced.
Therefore, the existing blood culture and collection method cannot meet the quantitative and pollution-proof requirements of blood culture.
Disclosure of Invention
To at least one problem among the above-mentioned prior art, the utility model aims at providing a collection system is cultivateed to blood makes it avoid artificially to lead to the sample to pollute on the basis of the volume of guaranteeing the blood collection, guarantees that blood culture specimen keeps the accuracy of getting pollution-free, guarantees the reliability of blood culture result, realizes ration, the pollution-free operation of blood culture blood sampling.
In order to achieve the purpose, the utility model adopts the following technical proposal:
a blood culture collection device comprising:
the three-way piece is provided with a first connecting port, a second connecting port, a third connecting port and a switch valve, and the switch valve is used for communicating any two of the first connecting port, the second connecting port and the third connecting port;
the tail part of the blood sampling needle head is connected with the first connecting port;
the side wall of the tube body of the injector is provided with scale marks, and the injection port of the injector is connected with the second connecting port;
and the blood injection needle is connected with the third connecting port.
Preferably, the tail part of the blood sampling needle is connected with the first connector through a hose.
Preferably, the blood injection needle is connected with the third connecting port through a hose.
Preferably, the switch valve is a rotary switch valve.
Preferably, the switch valve is provided with three rotating handles, and the rotating handles are provided with indicating arrows.
Preferably, the syringe tube is a transparent tube.
Preferably, the blood injection needle sleeve is provided with a sleeve.
Preferably, the blood injection needle is connected with a culture bottle.
The utility model discloses owing to take above technical scheme, it has following advantage:
the utility model provides a collection system is cultivateed to blood connects blood sampling syringe needle, syringe and blood injection syringe needle respectively through the three interface of tee bend spare to through the break-make of pipeline between tee bend spare control syringe and blood sampling syringe needle, the blood injection syringe needle, can realize quantitative blood sampling and the smooth switching operation that the pollution-free kept the appearance, guarantee that the blood cultivates the sample and keeps the accuracy of getting the volume and the pollution-free of sample, guarantee the reliability of blood culture result.
Drawings
Fig. 1 is a schematic structural view of a blood culture collection device according to an embodiment of the present invention.
Fig. 2 is a schematic structural view of a blood culture collection device with a sleeve according to an embodiment of the present invention.
In the drawings, the reference numbers:
1 is a three-way piece, 2 is a blood sampling needle, 3 is an injector, 4 is a blood injection needle, 5 is a switch valve, and 6 is a sleeve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the system or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "assembled", "disposed" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The utility model provides a collection system is cultivateed to blood connects blood sampling syringe needle, syringe and blood injection syringe needle respectively through the three interface of tee bend spare to through the break-make of pipeline between tee bend spare control syringe and blood sampling syringe needle, the blood injection syringe needle, can realize quantitative blood sampling and the smooth switching operation of pollution-free sample retention.
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Examples
Referring to fig. 1, the blood culture collection device provided in this embodiment includes a tee 1, a blood sampling needle 2, an injector 3, and a blood injection needle 4. The three-way component 1 is provided with three connectors which are respectively a first connector, a second connector and a third connector, the three-way component 1 is further provided with a switch valve 5, the switch valve 5 is used for communicating any two of the first connector, the second connector and the third connector, and the three-way component 1 can adopt a medical tee joint of a product in the prior art. The outlet at the tail part of the blood taking needle head 2 is connected with the first connecting port of the tee joint part 1. The side wall of the tube body of the injector 3 is provided with scale marks, the volume of the tube body can be 20ml, the injection port of the injector 3 is connected with the second connector of the three-way part 1, and the blood injection needle 4 is connected with the third connector.
In order to facilitate the connection of the blood sampling needle 2, the syringe 3 and the blood injection needle 4 with the three-way piece 1, the outlet at the tail part of the needle 2 can be connected with the first connecting port through a hose. The blood injection needle 4 may be connected to the third connection port via a hose. The injection port of the injector 3 may be directly connected to the second connection port, or may be connected to the second connection port via a hose.
In this embodiment, the switch valve 5 is a rotary switch valve, which is convenient to operate; and the switch valve 3 is provided with three rotating handles, each rotating handle is provided with an indicating arrow, the direction of the arrow can be visually judged by observing, and the first connecting port, the second connecting port and the third connecting port are communicated.
In order to achieve quantitative blood collection more conveniently and accurately, the tube of the syringe 3 may be a transparent tube.
As shown in figure 2, the head of the blood injection needle 4 can be sleeved with a sleeve 6 to protect the blood injection needle 1 from being damaged and polluted. The sleeve 6 may be a rubber boot. The blood injection needle head 4 is connected with a culture bottle which can be divided into an aerobic bottle and an anaerobic bottle.
The blood sampling needle head 2 ensures a steel needle and a needle handle, the steel needle is connected with the needle handle, and the blood sampling needle head 2 can be operated more conveniently through the needle handle.
The steel needle can be a hollow tube, and the blood sampling end at the head can be conical.
When the blood culture collection device of the embodiment collects blood quantitatively, the switch valve 5 is rotated to close the third connecting port of the blood injection needle 4 connected with the three-way part 1, so that the blood injection needle 2 is communicated with the injector 3, blood collected by the blood injection needle 2 is extracted through the injector 3, and the blood collection amount is controlled; after blood collection is finished, the switch valve 5 is rotated, the first connecting port of the blood collection needle 2 connected with the three-way piece 1 is closed, the injector 3 is communicated with the blood injection needle 4, the blood injection needle 4 is connected with a culture bottle, the piston of the injector 3 is pushed, blood in the injector 3 is pushed into the culture bottle 4, and the blood volume is controlled; in the operation process, the blood sampling needle head 2 is a blood sampling end, the blood injection needle head 4 is a blood injection end, and the blood sampling end is separated from the blood injection end, so that the pollution to a sample is avoided; the quantitative and pollution-free operation of blood culture and blood sampling can be realized through the injector 3, the accuracy of the remaining amount of the blood culture specimen in the culture bottle and the pollution-free property of the sample can be ensured, and the reliability of the blood culture result can be ensured.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (8)
1. A blood culture collection device, comprising:
the three-way piece is provided with a first connecting port, a second connecting port, a third connecting port and a switch valve, and the switch valve is used for communicating any two of the first connecting port, the second connecting port and the third connecting port;
the tail part of the blood sampling needle head is connected with the first connecting port;
the side wall of the tube body of the injector is provided with scale marks, and the injection port of the injector is connected with the second connecting port;
and the blood injection needle is connected with the third connecting port.
2. The blood culture collection device of claim 1, wherein the tail of the lancet head is connected to the first port by a flexible tubing.
3. The blood culture collection device according to claim 1, wherein the blood injection needle is connected to the third connection port via a hose.
4. The blood culture collection device of claim 1, wherein the on-off valve is a rotary on-off valve.
5. The blood culture collection device of claim 4 wherein the switch valve has three stems with indicating arrows.
6. The blood culture collection device of any one of claims 1-5, wherein the syringe tube is a transparent tube.
7. The blood culture collection device of any one of claims 1-5, wherein the blood injection needle hub is provided with a sleeve.
8. The blood culture collection device of any one of claims 1-5, wherein the blood injection needle is connected to a culture flask.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222951065.7U CN218792281U (en) | 2022-11-07 | 2022-11-07 | Blood culture collection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222951065.7U CN218792281U (en) | 2022-11-07 | 2022-11-07 | Blood culture collection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218792281U true CN218792281U (en) | 2023-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222951065.7U Active CN218792281U (en) | 2022-11-07 | 2022-11-07 | Blood culture collection system |
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| Country | Link |
|---|---|
| CN (1) | CN218792281U (en) |
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2022
- 2022-11-07 CN CN202222951065.7U patent/CN218792281U/en active Active
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