CN212301586U - Liquid backflow prevention leakage system for reagent pack - Google Patents
Liquid backflow prevention leakage system for reagent pack Download PDFInfo
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- CN212301586U CN212301586U CN202021114508.1U CN202021114508U CN212301586U CN 212301586 U CN212301586 U CN 212301586U CN 202021114508 U CN202021114508 U CN 202021114508U CN 212301586 U CN212301586 U CN 212301586U
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Abstract
The utility model discloses a system is revealed in liquid backward flow is prevented to reagent package, this system by the reagent bag connects, the switch slider, integrated electrode sensor, the peristaltic pump pipe, the sampling needle, six-way liquid distributor, the sampling needle sealing washer, the sampling needle adapter, the end face seal post the check valve waste liquid bag and each hose are constituteed. Have in the reagent bag connects reagent bag joint core, the sealed post of end face has the automatic closed sealing function after the sampling needle is extracted, through the switch slider is right the switching of reagent bag joint core, the sealed post of end face is right the sampling needle seals, with the waste liquid bag the check valve, it can not flow back to have super absorbent resin to guarantee in the waste liquid bag, so enable the connectivity between instrument and the reagent package better, avoid the phenomenon that reagent backward flow leaks to appear in the hookup location.
Description
Technical Field
The utility model relates to a blood gas medical treatment detects reagent package field, especially relates to a system is revealed in liquid backward flow is prevented to reagent package.
Background
At present, in a reagent bag, reagent bags of most manufacturers are placed at the top by adopting reagent inlets and outlets, reagent bag connectors only serve as adapters for communicating the reagent bags with pipelines, a guide pipe is led out from the connectors to the bottom of the reagent bags to extract reagents, and the reagent bag is single in function. The reagent bag is provided with a reagent bag adapter, and the reagent bag adapter are connected through a hose. When reagent is filled, the reagent bag is connected and installed in the reagent bag, and then the reagent can be filled in the reagent bag. One or more rubber plugs block the adapter holes of the reagent bags, so that the reagent bags are sealed and do not leak liquid in storage and transportation. When the reagent kit is used, a user firstly pulls out the plug on the reagent kit joint and then inserts the reagent kit into an instrument for use.
Because the pipeline switching of reagent package is more, when reagent package took off from the instrument, it is ageing to pull out to insert many times wearing and tearing between instrument and the reagent package, connects not well and causes the reagent backward flow to reveal the phenomenon easily.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a system is revealed in liquid backward flow is prevented to reagent package, and the pipeline switching that aims at solving the reagent package among the prior art is more, when reagent package takes off from the instrument, pulls out between instrument and the reagent package and inserts wearing and tearing ageing many times, connects not good technical problem who causes the reagent backward flow to reveal easily.
In order to achieve the purpose, the utility model discloses a liquid backflow leakage prevention system for reagent bags, which comprises a reagent bag, a sampling needle, a waste liquid bag and a transmission device; the sampling needle is connected with the reagent bag through a catheter and is positioned on one side of the reagent bag, and the waste liquid bag is connected with the sampling needle through a catheter and is positioned on one side of the sampling needle away from the reagent bag; the conveying device comprises a one-way valve, a sampling arm joint, an end face sealing column, a six-way liquid distributor and an opening and closing assembly, wherein one end of the one-way valve is connected with the waste liquid bag through a guide pipe, the other end of the one-way valve is connected with the sampling needle through a guide pipe and is positioned between the waste liquid bag and the sampling needle, the sampling arm joint is in sliding connection with the sampling needle and is positioned at one end, far away from the one-way valve, of the sampling needle, the end face sealing column is fixedly connected with the sampling arm joint, is abutted against the sampling needle and is positioned at one end, close to the sampling arm joint, of the sampling needle, and the six-way liquid distributor is connected with the sampling arm joint through a guide pipe, is connected with the reagent bag through a guide pipe and is positioned between the reagent bag and the sampling arm joint; the opening and closing assembly comprises a reagent bag connector, a switch sliding block and a reagent bag connector core, the reagent bag connector is fixedly connected with the reagent bag and is connected with the six-way liquid distributor through a guide pipe and is located at one side of the six-way liquid distributor, the reagent bag connector is provided with an opening and closing groove, the opening and closing groove is located in the reagent bag connector and is communicated with the inside of the reagent bag through the guide pipe, the switch sliding block is connected with the reagent bag connector in a sliding mode and is located in the opening and closing groove, and the reagent bag connector core is fixedly connected with the switch sliding block and is located at one side of the reagent bag connector far away from the switch sliding block.
The opening and closing assembly further comprises an O-shaped sealing ring, the O-shaped sealing ring is fixedly connected with the reagent bag joint core, abutted against the reagent bag joint and located between the reagent bag joint core and the reagent bag joint.
Wherein, transmission device still includes the sampling needle sealing washer, the sampling needle sealing washer with the sampling needle butt, and with sampling arm connects fixed connection, and is located sampling arm connect with between the sampling needle.
The conveying device further comprises a peristaltic pump tube and a driver, wherein the peristaltic pump tube is connected with the one-way valve through a conduit, is connected with the sampling needle through a conduit, and is positioned between the one-way valve and the sampling needle; the driver is rotatably connected with the peristaltic pump tube and is positioned on one side of the peristaltic pump tube.
The transmission device further comprises a rotating shaft, and the rotating shaft is rotatably connected with the six-way liquid distributor and is positioned inside the six-way liquid distributor.
The one-way valve is provided with a liquid stopping port, and the liquid stopping port is positioned on one side of the one-way valve close to the waste liquid bag; the waste liquid bag is connected with the liquid stopping port through a conduit.
The system for preventing the liquid from flowing back and leaking out of the reagent pack further comprises an integrated electrode sensor, wherein the integrated electrode sensor is communicated with the sampling needle through a conduit, communicated with the peristaltic pump pipe and positioned between the peristaltic pump pipe and the sampling needle.
The utility model discloses a system is revealed in liquid backward flow is prevented to reagent package, through to the system the control of switch slider is right the reagent bag connects opens and closes, including the waste liquid bag the check valve, it can not flow back to have super absorbent resin to guarantee in the waste liquid bag. This system by the reagent bag connects, the switch slider, integrated electrode sensor, the peristaltic pump pipe, the sampling needle, six-way liquid distributor, the sampling needle sealing washer, the sampling needle adapter, the end face seal post the check valve waste liquid bag and each hose are constituteed. Have in the reagent bag connects reagent bag joint core, the sealed post of end face has the automatic closed sealing function after the sampling needle is extracted, through the switch slider is right the switching of reagent bag joint core, the sealed post of end face is right the sampling needle seals, so enables the connectivity between instrument and the reagent package better, avoids the phenomenon that reagent backward flow leaked to appear in hookup location.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a diagram of a fluid path system of the present invention.
Figure 2 is a cross-sectional view of the reagent bag adapter of the present invention.
In the figure: 10-waste liquid bag, 20-one-way valve, 30-peristaltic pump tube, 40-driver, 50-integrated electrode sensor, 60-sampling needle, 70-sampling needle sealing ring, 80-sampling arm joint, 90-end face sealing column, 100-six-way liquid distributor, 110-switch slider, 120-reagent bag joint core, 130-reagent bag joint, 140-reagent bag, 150-O-shaped sealing ring, 160-rotating shaft, 170-liquid stop port, 180-transmission device, 190-opening and closing component, 200-reagent bag liquid backflow prevention leakage system, 210-opening and closing groove.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1 and 2, the present invention provides a liquid backflow leakage prevention system 200 for reagent pack, which includes a reagent bag 140, a sampling needle 60, a waste liquid bag 10 and a transmission device 180; the sampling needle 60 is connected with the reagent bag 140 through a conduit and is positioned at one side of the reagent bag 140, and the waste liquid bag 10 is connected with the sampling needle 60 through a conduit and is positioned at one side of the sampling needle 60 far away from the reagent bag 140; the transfer device 180 comprises a one-way valve 20, a sampling arm joint 80, an end face sealing column 90, a six-way liquid distributor 100 and an opening and closing assembly 190, one end of the one-way valve 20 is connected with the waste liquid bag 10 through a conduit, and the other end is connected with the sampling needle 60 through a catheter and is positioned between the waste liquid bag 10 and the sampling needle 60, the sampling arm joint 80 is connected with the sampling needle 60 in a sliding way, and is located at one end of the sampling needle 60 far away from the one-way valve 20, the end face sealing column 90 is fixedly connected with the sampling arm joint 80, and is abutted against the sampling needle 60 and is positioned at one end of the sampling needle 60 close to the sampling arm joint 80, the six-way liquid distributor 100 is connected with the sampling arm joint 80 through a conduit, and is connected to the reagent bag 140 by a conduit and is located between the reagent bag 140 and the sampling arm adapter 80; the opening/closing assembly 190 includes a reagent bag connector 130, a switch slider 110, and a reagent bag connector core 120, wherein the reagent bag connector 130 is fixedly connected to the reagent bag 140, is connected to the six-way liquid dispenser 100 through a conduit, and is located at a side of the reagent bag 140 close to the six-way liquid dispenser 100, the reagent bag connector 130 has an opening/closing groove 210, the opening/closing groove 210 is located inside the reagent bag connector 130, is communicated with the inside of the reagent bag 140, and is communicated with the six-way liquid dispenser 100 through a conduit, the switch slider 110 is slidably connected to the reagent bag connector 130, and is located inside the opening/closing groove 210, and the reagent bag connector core 120 is fixedly connected to the switch slider 110, and is located at a side of the switch slider 110 away from the reagent bag connector 130.
In this embodiment, the reagent bag connector 130 integrates a switch function, and the reagent bag connector 130 is disposed at the bottom of the reagent bag 140 and is integrally pressed with the reagent bag 140, so that the pipeline switching in the reagent bag 140 is eliminated; the reagent bag connector core 120 is arranged in the reagent bag connector 130, the reagent bag connector core 120 can axially slide in the reagent bag connector 130, the switch slider 110 is provided with an inclined surface, the switch slider 110 is connected with the reagent bag connector core 120 through a connecting groove, when an inclined block at an instrument end ejects the switch slider 110 through the inclined surface on the switch slider 110, the switch slider 110 can slide to one side of the inclined surface, so that the reagent bag connector core 120 is driven to slide in the opening and closing groove 210 in the reagent bag connector 130, and the opening and closing groove 210 is communicated with the six-way liquid distributor 100 and the reagent bag 140, so that the opening and closing functions of the reagent bag connector 130 are realized; the sampling needle 60 is inserted into the sampling arm joint 80, and the end face sealing column 90 is arranged at the other end of the sampling arm joint 80; the end face sealing column 90 has a self-closing function, when the sampling needle 60 penetrates through the end face sealing column 90, the end face sealing column 90 is pushed open, and when the sampling needle 60 is pulled out of the end face sealing column, the end face sealing column 90 is automatically closed; the liquid stopping port of the one-way valve 20 is connected with the waste liquid bag 10, and super absorbent resin is arranged in the waste liquid bag 10. The super absorbent resin is in a gel state after absorbing water, and the waste liquid bag 10 is provided with a waterproof and breathable film which can only pass gas but can not pass liquid. The liquid returned from the waste bag 10 is prevented from returning by the check valve 20; in this way, when the reagent bag 140 is filled with a reagent, the reagent bag connector core 120 is pulled out from the reagent bag connector 130, the reagent is filled into the reagent bag 140, then the reagent bag connector core 120 is filled back into the reagent bag connector 130, and the reagent bag connector core 120 is pushed to the bottom to completely close the reagent bag connector 130, thereby completing the filling of the reagent bag 140; connecting the filled reagent bag 140 to the corresponding connector of the 6-way liquid dispenser 100 by using a hose; in this process, the filled reagent bag 140 and the switch slider 110 are both in the closed state. During storage and transportation, the switch slider 110 is in a closed state, and the reagent bag connector 130 is closed; the sampling needle 60 is in a retracted state and the face seal post 90 is closed. The whole system is in a closed state, and liquid leakage is effectively prevented. When a reagent bag is inserted into the instrument, the switch slider 110 is provided with an inclined surface, the groove on the switch slider 110 is connected with the reagent bag connector core 120, and when an inclined block at the end of the instrument pushes out the inclined surface on the switch slider 110, the switch slider 110 can slide to one side of the inclined surface, so that the reagent bag connector core 120 is driven to slide in the reagent bag connector 130, the reagent bag connector 130 is opened, and the reagent bag 140 is communicated with the 6-way liquid distributor 100. The sampling needle 60 is in a retracted state and the face seal post 90 is closed. The whole system is in a closed state. When a sample is sucked, the sampling needle 60 moves downwards to extend out of the end face sealing column 90, the reagent bag 140 is still in a sealing closed state, and the one-way valve 20 prevents liquid from flowing back. After the sample is sucked, the sampling needle 60 moves upwards and is pulled away from the end face sealing column 90, and the end face sealing column 90 is automatically closed, so that the whole system is in a closed state; therefore, the instrument and the reagent pack are better in connectivity, and the phenomenon of reagent backflow leakage at the connecting position is avoided.
Further, referring to fig. 2, the opening and closing assembly 190 further includes an O-ring 150, and the O-ring 150 is fixedly connected to the reagent bag connector core 120, abuts against the reagent bag connector 130, and is located between the reagent bag connector core 120 and the reagent bag connector 130.
In this embodiment, the reagent bag adapter core 120 includes 2O-rings 150, and the 2O-rings 150 are respectively installed in the reagent bag adapter core 120 so as to be axially slidable in the reagent bag adapter 130 and seal the liquid in the reagent bag 140.
Further, referring to fig. 1, the transfer device 180 further includes a sampling needle sealing ring 70, wherein the sampling needle sealing ring 70 abuts against the sampling needle 60, is fixedly connected to the sampling arm joint 80, and is located between the sampling arm joint 80 and the sampling needle 60.
In this embodiment, the sampling needle 60 is inserted into the sampling arm joint 80 through the sampling needle seal ring 70, the end face seal post 90 is mounted at the other end of the sampling arm joint 80, and the sampling needle seal ring 70 improves the connectivity between the sampling needle 60 and the end face seal post 90.
Further, referring to fig. 1, the transfer device 180 further includes a peristaltic pump tube 30 and a driver 40, the peristaltic pump tube 30 is connected to the one-way valve 20 through a conduit, is connected to the sampling needle 60 through a conduit, and is located between the one-way valve 20 and the sampling needle 60; the driver 40 is rotatably connected to the peristaltic pump tube 30 and is located on one side of the peristaltic pump tube 30.
In this embodiment, two ends of the peristaltic pump tube 30 are connected to the sampling needle 60 and the one-way valve 20 through a conduit, respectively, and the driver 40 is connected to the outer circumference of the peristaltic pump tube 30 to press the peristaltic pump tube 30, thereby increasing the flow rate of the reagent in the peristaltic pump tube 30.
Further, referring to fig. 1, the transmission device 180 further includes a rotating shaft 160, and the rotating shaft 160 is rotatably connected to the six-way liquid distributor 100 and is located inside the six-way liquid distributor 100.
In this embodiment, the rotating shaft 160 is disposed in the six-way liquid distributor 100, and the rotating shaft 160 rotates with the housing of the six-way liquid distributor 100 through a bearing, and further selectively connects with the channels distributed around through the rotation of the rotating shaft 160.
Further, referring to fig. 1, the check valve 20 has a liquid stop port 170, and the liquid stop port 170 is located at a side of the check valve 20 close to the waste liquid bag 10; the waste liquid bag 10 is connected to the liquid stop port 170 through a conduit.
In the present embodiment, the liquid stop port 170 is a one-way liquid stop, is located on a side of the one-way valve 20 facing the waste liquid bag 10, and blocks a reagent returned from the waste liquid bag 10.
Further, referring to fig. 1, the system 200 for preventing liquid backflow leakage of a reagent pack further includes an integrated electrode sensor 50, wherein the integrated electrode sensor 50 is in communication with the sampling needle 60, in communication with the peristaltic pump tube 30, and between the peristaltic pump tube 30 and the sampling needle 60 through a catheter.
In this embodiment, the integrated electrode sensor 50 is model YG-DS1, and the integrated electrode sensor 50 is connected to the catheter and monitors the flow of the reagent in the catheter, so as to facilitate the operator to control the flow of the reagent in the catheter.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
Claims (7)
1. A liquid backflow leakage prevention system for a reagent pack is characterized by comprising a reagent bag, a sampling needle, a waste liquid bag and a transmission device;
the sampling needle is connected with the reagent bag through a catheter and is positioned on one side of the reagent bag, and the waste liquid bag is connected with the sampling needle through a catheter and is positioned on one side of the sampling needle away from the reagent bag;
the conveying device comprises a one-way valve, a sampling arm joint, an end face sealing column, a six-way liquid distributor and an opening and closing assembly, wherein one end of the one-way valve is connected with the waste liquid bag through a guide pipe, the other end of the one-way valve is connected with the sampling needle through a guide pipe and is positioned between the waste liquid bag and the sampling needle, the sampling arm joint is in sliding connection with the sampling needle and is positioned at one end, far away from the one-way valve, of the sampling needle, the end face sealing column is fixedly connected with the sampling arm joint, is abutted against the sampling needle and is positioned at one end, close to the sampling arm joint, of the sampling needle, and the six-way liquid distributor is connected with the sampling arm joint through a guide pipe, is connected with the reagent bag through a guide pipe and is positioned between the reagent bag and the sampling arm joint;
the opening and closing assembly comprises a reagent bag connector, a switch sliding block and a reagent bag connector core, the reagent bag connector is fixedly connected with the reagent bag and is connected with the six-way liquid distributor through a guide pipe and is located at one side of the six-way liquid distributor, the reagent bag connector is provided with an opening and closing groove, the opening and closing groove is located in the reagent bag connector and is communicated with the inside of the reagent bag through the guide pipe, the switch sliding block is connected with the reagent bag connector in a sliding mode and is located in the opening and closing groove, and the reagent bag connector core is fixedly connected with the switch sliding block and is located at one side of the reagent bag connector far away from the switch sliding block.
2. The fluid backflow prevention system of claim 1,
the opening and closing assembly further comprises an O-shaped sealing ring, the O-shaped sealing ring is fixedly connected with the reagent bag joint core, abutted against the reagent bag joint and located between the reagent bag joint core and the reagent bag joint.
3. The fluid backflow prevention system of claim 1,
the transmission device further comprises a sampling needle sealing ring, wherein the sampling needle sealing ring is abutted to the sampling needle and fixedly connected with the sampling arm joint and located between the sampling arm joint and the sampling needle.
4. The fluid backflow prevention system of claim 1,
the conveying device further comprises a peristaltic pump tube and a driver, wherein the peristaltic pump tube is connected with the one-way valve through a conduit, is connected with the sampling needle through a conduit, and is positioned between the one-way valve and the sampling needle; the driver is rotatably connected with the peristaltic pump tube and is positioned on one side of the peristaltic pump tube.
5. The fluid backflow prevention system of claim 1,
the transmission device further comprises a rotating shaft, and the rotating shaft is rotatably connected with the six-way liquid distributor and is positioned inside the six-way liquid distributor.
6. The fluid backflow prevention system of claim 1,
the one-way valve is provided with a liquid stopping port, and the liquid stopping port is positioned on one side of the one-way valve close to the waste liquid bag; the waste liquid bag is connected with the liquid stopping port through a conduit.
7. The fluid backflow prevention system of claim 4,
the system is revealed in liquid backward flow is prevented to reagent package still includes integrated electrode sensor, integrated electrode sensor pass through the pipe with sampling needle intercommunication, and with peristaltic pump pipe intercommunication, and be located the peristaltic pump pipe with between the sampling needle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021114508.1U CN212301586U (en) | 2020-06-16 | 2020-06-16 | Liquid backflow prevention leakage system for reagent pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021114508.1U CN212301586U (en) | 2020-06-16 | 2020-06-16 | Liquid backflow prevention leakage system for reagent pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212301586U true CN212301586U (en) | 2021-01-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021114508.1U Active CN212301586U (en) | 2020-06-16 | 2020-06-16 | Liquid backflow prevention leakage system for reagent pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212301586U (en) |
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2020
- 2020-06-16 CN CN202021114508.1U patent/CN212301586U/en active Active
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