CN209951916U - Device for preventing liquid from flowing back for transfusion - Google Patents
Device for preventing liquid from flowing back for transfusion Download PDFInfo
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- CN209951916U CN209951916U CN201821079195.3U CN201821079195U CN209951916U CN 209951916 U CN209951916 U CN 209951916U CN 201821079195 U CN201821079195 U CN 201821079195U CN 209951916 U CN209951916 U CN 209951916U
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- transfusion
- tube
- transfusion tube
- liquid
- control valve
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Abstract
The utility model discloses a device for preventing liquid from flowing back for transfusion, which comprises a transfusion tube, one end of the transfusion tube is detachably connected with a transfusion bottle connecting needle, one side of the transfusion bottle connecting needle, which is close to one end of the transfusion tube, is detachably connected with a gas outlet tube, one end of the gas outlet tube, which is far away from the transfusion tube, is detachably connected with a gas outlet valve, the surface of the transfusion tube is connected with a flow regulator, the lower end of the flow regulator is connected with a visual dropper through the transfusion tube, the backflow preventing device can ensure that liquid can not flow back rapidly by installing a floating ball between the visual dropper and an extrusion dropping funnel, and can be used for blocking a path of liquid backflow, in addition, a control valve is also arranged near a needle head, once the liquid in the transfusion bottle is ready to be infused, the control valve is closed immediately, a doctor, triple measures protect against backflow of blood.
Description
Technical Field
The utility model relates to an infusion device, in particular to a device for preventing liquid from flowing back for infusion.
Background
The infusion apparatus is a common medical consumable, and a channel between a vein and liquid medicine is established through aseptic processing and is used for intravenous infusion. Generally comprises eight parts of a vein needle or an injection needle, a needle head protective cap, a transfusion hose, a liquid medicine filter, a flow rate regulator, a drip cup, a bottle stopper puncture outfit, an air filter and the like which are connected. The clinical commonly used infusion apparatus is mostly a common infusion apparatus, the internal structure of the infusion apparatus is simple, the infusion apparatus is only used as an infusion tool, no backflow prevention device is arranged, once infusion is about to be finished, if liquid flow can not be found in time, blood in a patient body can flow back into the infusion tube, and once an accident occurs, the consequence is not considered.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a device for preventing liquid from flowing back for transfusion, which aims at the defects of the prior art.
In order to solve the technical problem, the utility model provides a following technical scheme:
the utility model relates to a device for preventing liquid from flowing back is used in infusion, including the transfer line, transfer line one end can be dismantled and be connected with infusion bottle connection needle, the one end side that infusion bottle connection needle is close to the transfer line can be dismantled and be connected with the outlet duct, the one end that the transfer line was kept away from to the outlet duct can be dismantled and be connected with discharge valve, transfer line surface connection has flow regulator, the flow regulator lower extreme is connected with visual burette through the transfer line, the inside bottom of visual burette is equipped with branch, be equipped with the floating ball under the branch, be connected with the extrusion drip chamber through the transfer line under the visual burette, be connected with the control valve through the transfer line under the extrusion drip chamber, be connected with the syringe needle helmet through the transfer line under the control valve, the syringe needle helmet is.
As an optimized technical scheme of the utility model, fixedly connected with lines between branch and the floating ball, just the floating ball is established in the inside upper end of extrusion drip chamber.
As an optimized technical proposal of the utility model, the bottom end of the control valve is fixedly connected with the anti-reflux cavity inside the joint of the infusion tube.
As an optimized technical scheme of the utility model, the inside fixedly connected with air filter strip of discharge valve.
The utility model discloses the beneficial effect who reaches is: the backflow preventing device can ensure that liquid cannot flow back rapidly by installing the floating ball between the visual dropper and the extrusion dropper, and a path for blocking liquid backflow is achieved; in addition, the transfusion tube is also provided with a backflow-preventing cavity, and the backflow of blood is ensured by multiple measures.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic top view of the visual dropper and the squeezing chamber of the present invention;
fig. 3 is a schematic view of the anti-backflow cavity structure of the present invention.
In the figure: 1. the infusion bottle is connected with the needle; 2. an air outlet pipe; 3. an air filter strip; 4. an exhaust valve; 5. a transfusion tube; 6. a flow regulator; 7. a visible dropper; 8. a strut; 9. lines; 10. a floating ball; 11. extruding the dropping funnel; 12. a control valve; 13. an anti-reflux cavity; 14. a needle head protective cap; 15. a needle.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.
Example (b): as shown in figures 1-3, the utility model relates to a device for preventing liquid from flowing back for transfusion, which comprises a transfusion tube 5, one end of the transfusion tube 5 is detachably connected with a transfusion bottle connecting needle 1, the side surface of one end of the transfusion bottle connecting needle 1, which is close to the transfusion tube 5, is detachably connected with an outlet pipe 2, the end of the outlet pipe 2, which is far away from the transfusion tube 5, is detachably connected with an exhaust valve 4, the surface of the transfusion tube 5 is connected with a flow regulator 6, the lower end of the flow regulator 6 is connected with a, a supporting rod 8 is arranged at the bottom end inside the visual dropper 7, a floating ball 10 is arranged under the supporting rod 8, an extrusion dropping funnel 11 is connected below the visual dropper 7 through a transfusion tube 5, a control valve 12 is connected below the extrusion dropping funnel 11 through the transfusion tube 5, a needle head protecting cap 14 is connected below the control valve 12 through the transfusion tube 5, and a needle head 15 is detachably connected to one end, far away from the transfusion tube 5, of the needle head protecting cap 14.
The model of the exhaust valve 4 is the exhaust valve 4 of WJ1901, the model of the control valve 12 is the control valve 12 of DN20AW, the fixedly connected with line 9 between the support rod 8 and the floating ball 10, and the floating ball 10 is arranged at the upper end inside the extrusion dropping funnel 11, the bottom end of the control valve 12 is fixedly connected with the anti-backflow cavity 13 inside the connection part of the infusion tube 5, and the air filtering strip 3 inside the exhaust valve 4 is fixedly connected with.
Specifically, the utility model discloses during the use, in inserting the infusion bottle with infusion bottle connecting needle 1, with the hand to extrusion drip chamber 11 extrude the liquid flow that makes in the infusion bottle advance transfer line 5 and extrusion drip chamber 11 in, the speed that 6 control liquid of readjustment flow regulator fell, when liquid fills up whole transfer line 5, can close control valve 12, inject syringe needle 15 into the artery on the patient arm and infuse, in case when liquid backward flow appears, the flow that comes from lower extreme liquid at this moment supports floating ball 10 at 5 mouths of transfer line of extrusion drip chamber 11, can block liquid flow like this, anti-reflux chamber 13 and the control valve 12 in the transfer line 5 all can prevent liquid backward flow in addition.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. A device for preventing liquid from flowing back for transfusion comprises a transfusion tube (5) and is characterized in that one end of the transfusion tube (5) is detachably connected with a transfusion bottle connecting needle (1), one end side surface, close to the transfusion tube (5), of the transfusion bottle connecting needle (1) is detachably connected with an air outlet tube (2), one end, far away from the transfusion tube (5), of the air outlet tube (2) is detachably connected with an exhaust valve (4), the surface of the transfusion tube (5) is connected with a flow regulator (6), the lower end of the flow regulator (6) is connected with a visual dropper (7) through the transfusion tube (5), the bottom end inside the visual dropper (7) is provided with a support rod (8), a floating ball (10) is arranged under the support rod (8), an extrusion dropping funnel (11) is connected under the visual dropper (7) through the transfusion tube (5), and a control valve (12) is connected under the extrusion dropping funnel (11) through the transfusion, a needle head protective cap (14) is connected to the lower part of the control valve (12) through a transfusion tube (5), and a needle head (15) can be detachably connected to one end, far away from the transfusion tube (5), of the needle head protective cap (14).
2. The device for preventing liquid backflow for infusion according to claim 1, wherein a line (9) is fixedly connected between the support rod (8) and the floating ball (10), and the floating ball (10) is arranged at the upper end inside the extrusion dropping funnel (11).
3. The device for preventing liquid from flowing back for transfusion as claimed in claim 1, wherein the anti-backflow cavity (13) is fixedly connected inside the joint of the bottom end of the control valve (12) and the transfusion tube (5).
4. The device for preventing backflow of liquid for infusion according to claim 1, wherein an air filter strip (3) is fixedly connected inside the exhaust valve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821079195.3U CN209951916U (en) | 2018-07-09 | 2018-07-09 | Device for preventing liquid from flowing back for transfusion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821079195.3U CN209951916U (en) | 2018-07-09 | 2018-07-09 | Device for preventing liquid from flowing back for transfusion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209951916U true CN209951916U (en) | 2020-01-17 |
Family
ID=69233449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821079195.3U Active CN209951916U (en) | 2018-07-09 | 2018-07-09 | Device for preventing liquid from flowing back for transfusion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209951916U (en) |
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2018
- 2018-07-09 CN CN201821079195.3U patent/CN209951916U/en active Active
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