CN217409564U - On-off device for liquid injection - Google Patents
On-off device for liquid injection Download PDFInfo
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- CN217409564U CN217409564U CN202220761268.7U CN202220761268U CN217409564U CN 217409564 U CN217409564 U CN 217409564U CN 202220761268 U CN202220761268 U CN 202220761268U CN 217409564 U CN217409564 U CN 217409564U
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- elastic channel
- limiting valve
- flow limiting
- liquid injection
- injection
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Abstract
The utility model discloses an on-off device for liquid injection, include: the support, elasticity passageway and restriction valve. Wherein: the elastic channel is of an ellipsoid structure and is horizontally placed in the support, and the left end and the right end of the elastic channel are respectively connected with the left end and the right end of the support. The flow limiting valve is of an ellipsoidal structure and is provided with penetrating strip-shaped notches distributed from left to right, the flow limiting valve is positioned in the elastic channel, and the upper part and the lower part of the elastic channel are tightly attached to the upper part and the lower part of the flow limiting valve respectively. When liquid is infused from one end of the elastic channel to the other end, the strip-shaped incision is opened by pressing the flow limiting valve, so that liquid passes through the flow limiting valve, and under the condition that the flow limiting valve is not pressed, the strip-shaped incision is closed, the liquid cannot be delivered from one end of the elastic channel to the other end, and therefore the on-off of liquid medicine delivery is realized. In addition, whether the needle head of the injection needle is mistakenly inserted into the blood vessel can be judged by extruding the flow limiting valve to one end of the liquid inlet of the elastic channel before injection.
Description
Technical Field
The utility model relates to an injection device field especially relates to a liquid injection is with on-off ware.
Background
The information disclosed in the background of the invention is only for enhancement of understanding of the general background of the invention and is not necessarily to be construed as an admission or any form of suggestion that this information constitutes prior art that is already known to a person of ordinary skill in the art.
Conventionally, nerve block anesthesia is performed under ultrasound guidance by an anesthesiologist in cooperation with an assistant. When nerve block anesthesia is performed, an assistant is required to hold the syringe to assist an operator to perform manual liquid medicine infusion when needed, and the infusion can be finished after the operation is interrupted for a plurality of times. Sometimes, it takes a long time for nerve block operation, speech communication is needed between the operator and the assistant, the tacit operation can achieve technical perfection, and if the error occurs, the liquid medicine injection may be too fast or too slow, causing adverse events.
SUMMERY OF THE UTILITY MODEL
To foretell problem, the utility model provides a switch for liquid injection, it can utilize aperture size restriction liquid flow, can realize the adult operation with pushing away after the main pump is connected and carry out the medicine infusion, has solved the problem that traditional nerve block anesthesia needs two people's cooperation operation infusions, has improved work efficiency. In order to achieve the above purpose, the technical scheme of the utility model is as follows.
An on-off device for liquid injection, comprising: a support, a resilient channel, and a flow-restricting valve. Wherein: the elastic channel is of an ellipsoid structure and is horizontally placed in the support, and the left end and the right end of the elastic channel are respectively connected with the left end and the right end of the support. The flow limiting valve is of an ellipsoidal structure and is provided with penetrating strip-shaped notches distributed from left to right, the flow limiting valve is positioned in the elastic channel, and the upper part and the lower part of the elastic channel are tightly attached to the upper part and the lower part of the flow limiting valve respectively. When the liquid is transfused from one end of the elastic channel to the other end, the strip-shaped notch is opened by pressing the flow limiting valve, so that the liquid passes through the flow limiting valve, and under the condition of not pressing the flow limiting valve, the strip-shaped notch is closed, the liquid cannot be conveyed from one end of the elastic channel to the other end, so that the on-off of the liquid medicine conveying is realized.
Further, gaps are formed between two ends of the flow limiting valve and two ends of the elastic channel, so that the flow limiting valve is squeezed to one end of the liquid inlet of the elastic channel before injection, and negative pressure is formed in the injection needle to detect whether the needle penetrates into a blood vessel or not.
Furthermore, an input pipe and an output pipe are respectively fixed on the left end face and the right end face of the support, and the left end and the right end of the elastic channel are respectively connected with the input pipe and the output pipe.
Furthermore, the other end of the output pipe is connected with the injection needle so as to inject the liquid medicine into muscles.
Further, the other end of the input tube is connected with an injection device so as to input the liquid medicine into the input tube. Preferably, the injection device comprises a device having an automatic injection function, such as a syringe pump.
Furthermore, both ends of the elastic channel are provided with connectors which are tightly sleeved on the input pipe and the output pipe respectively.
Further, the bottom surface of the bracket is provided with a groove, and the elastic channel support is placed in the groove.
Further, the material of the elastic channel comprises one of rubber, silica gel, flexible plastic and the like.
Further, the material of the flow limiting valve comprises one of rubber, silica gel, flexible plastic and the like.
Compared with the prior art, the utility model discloses following beneficial effect has: at present, when nerve block anesthesia is performed, an assistant is generally required to hold an injector to assist an operator to perform manual infusion, and inconvenience is brought. The utility model discloses an on-off ware for liquid injection can be connected with automatic injection device through the one end with elastic channel, is connected elastic channel's the other end and syringe needle, only needs a hand control the notched break-make and the transport volume control that can conveniently realize the liquid medicine of strip in the restriction valve to can make medical staff accomplish the nerve block anesthesia alone. In addition, before injection (at the moment, the injection needle is already inserted into a part to be injected), the flow limiting valve is squeezed to one end of the liquid inlet of the elastic channel, so that negative pressure is formed in the injection needle, and whether the blood is inserted into the blood vessel by mistake or not can be detected by observing whether blood returns in the injection needle or not.
Drawings
The accompanying drawings, which form a part of the specification, 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 constitute a limitation on the invention.
Fig. 1 is a schematic structural view of an embodiment of the present invention in a state that an on-off device for liquid injection is opened.
Fig. 2 is an exploded view of the embodiment of the present invention in a state where the on-off device for liquid injection is opened.
Fig. 3 is a front view of a strip-shaped notch in a flow limiting valve in a closed state according to an embodiment of the present invention.
Fig. 4 is a front view of a strip-shaped notch in a flow limiting valve in an embodiment of the present invention in an open state.
The labels in the figures represent: 1-bracket, 2-elastic channel, 3-flow limiting valve, 4-strip-shaped notch, 5-gap, 6-input pipe and 7-output pipe.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
For convenience of description, the words "up", "down", "left" and "right" in the present invention, if appearing, are only used to indicate the correspondence of the directions of up, down, left and right of the drawings themselves, and not to limit the structure, but merely to facilitate the description of the present invention and to simplify the description, and do not indicate or imply that the equipment or elements referred to need to have a specific orientation, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention. The oropharyngeal airway of the present invention will now be further described with reference to the drawings and the detailed description of the specification.
Referring to fig. 1 to 4, there is illustrated an on-off switch for liquid injection, including: support 1, elasticity passageway 2, restriction valve 3, inlet tube 6 and output tube 7. Wherein:
the support 1 is a frame-shaped structure with a bottom surface, a left end surface and a right end surface. The elastic channel 2 is of an ellipsoid structure and is horizontally arranged in the bracket 1, and the left end and the right end of the elastic channel 2 are respectively connected with the left end and the right end of the bracket 1, so that the elastic channel 2 is kept in a horizontal setting state. The flow limiting valve 3 is of an ellipsoid structure and is provided with penetrating strip-shaped notches 4 distributed from left to right, the flow limiting valve 3 is positioned in the elastic channel 2, and the upper part and the lower part of the elastic channel 2 are respectively tightly attached to the upper part and the lower part of the flow limiting valve 3, so that the elastic channel 2 is conveniently blocked from the middle. For this purpose, the material of the elastic channel 2 and the flow limiting valve 3 can be selected from rubber, silica gel, flexible plastic, and the like.
Referring to fig. 1, when fluid is infused from the left end to the right end of the elastic channel 2, the front wall surface and the rear wall surface of the elastic channel 2 are pinched by hands, and the restriction valve 3 is further squeezed to change the strip-shaped incision 4 therein from the closed state to the open state (refer to fig. 3 and 4), so that the medical fluid infused from one end of the elastic channel 2 passes through the open strip-shaped incision 4, enters the other end of the elastic channel 2, and then enters the muscle of a patient from an injection needle to realize intramuscular injection. Under the condition that the flow limiting valve 3 is not squeezed, the strip-shaped notch 4 is kept closed under the elastic action of the flow limiting valve 3, and the liquid medicine cannot be conveyed from one end of the elastic channel 2 to the other end, so that the on-off of the liquid medicine conveying is realized. At present, when nerve block anesthesia is performed, an assistant is generally required to hold an injector to assist an operator to perform manual infusion, and inconvenience is brought. The on-off device for liquid injection of the embodiment can control the opening and closing of the strip-shaped notch in the flow limiting valve by only one hand of an operator, and can conveniently realize the on-off and delivery volume control of the liquid medicine.
Referring to fig. 1 and 2, in another embodiment, an input tube 6 and an output tube 7 are respectively fixed on the left and right end faces of the bracket 1, and both ends of the elastic channel 2 have connection ports which are tightly sleeved on the input tube 6 and the output tube 7 respectively. The elasticity of the elastic channel 2 can be used to make the two ends of the elastic channel tightly connected with the input pipe 6 and the output pipe 7.
In another embodiment, the other end of the input tube 6 is connected to an injection device to facilitate the input of a medical fluid into the input tube 6. The other end of the output pipe 7 is connected with a transfusion pipe of a transfusion needle so as to carry out intramuscular injection on the liquid medicine. The injection device is a device with an automatic injection function, such as an injection pump and the like. One end of the elastic channel 2 is connected with the automatic injection device, the other end of the elastic channel 2 is connected with the injection needle, and the opening and closing of the strip-shaped notch 4 in the flow limiting valve 3 can be controlled by one hand to conveniently realize the on-off and delivery volume control of the liquid medicine, so that medical staff can finish nerve block anesthesia independently.
Referring to fig. 1 and 2, in another embodiment, the bracket 1 has a groove 8 on the bottom surface, and the elastic channel 2 is supported and placed in the groove to ensure the stability of the elastic channel 2.
Referring to fig. 1 and 2, in another embodiment, a gap 5 is formed between two ends of the restriction valve 3 and two ends of the elastic channel 2, so that before injection (at the moment that the injection needle is inserted into the injection site), negative pressure is formed in the injection needle by pressing the restriction valve 3 to one end of the liquid inlet of the elastic channel 2, whether the injection needle is inserted into a blood vessel by mistake is detected by observing whether blood returns in the injection needle, if the blood vessel exists in the injection needle, the injection cannot be performed, and the injection is performed after the position of the injection needle is adjusted to the muscle.
Finally, it should be understood that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. Although the present invention has been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without inventive work are still within the scope of the present invention.
Claims (10)
1. An on-off device for liquid injection, comprising: the device comprises a bracket, an elastic channel and a flow limiting valve; wherein: the elastic channel is of an ellipsoidal structure and is horizontally arranged in the bracket, and the left end and the right end of the elastic channel are respectively connected with the left end and the right end of the bracket; the flow limiting valve is of an ellipsoidal structure and is provided with penetrating strip-shaped notches distributed from left to right, the flow limiting valve is positioned in the elastic channel, and the upper part and the lower part of the elastic channel are tightly attached to the upper part and the lower part of the flow limiting valve respectively.
2. The liquid injection switch according to claim 1, wherein a gap is provided between both ends of the flow restriction valve and both ends of the elastic passage.
3. The switch for liquid injection according to claim 1, wherein an input tube and an output tube are fixed to left and right end surfaces of the holder, respectively, and left and right ends of the elastic channel are connected to the input tube and the output tube, respectively.
4. The liquid injection switch according to claim 3, wherein the other end of the outlet tube is connected to the injection needle.
5. The liquid injection switch according to claim 3, wherein the other end of the input tube is connected to an injection device.
6. The liquid injection switch according to claim 5, wherein the injection means comprises means having an automatic injection function.
7. The liquid injection switch according to claim 3, wherein the elastic channel has connection ports at both ends thereof, and the connection ports are tightly fitted to the inlet tube and the outlet tube, respectively.
8. A liquid injection switch according to claim 1, wherein the holder has a groove on a bottom surface thereof, and the elastic channel is supported to be placed in the groove.
9. An on-off device for liquid injection as claimed in any of claims 1-8, wherein the material of the elastic channel comprises one of rubber, silicone, and flexible plastic.
10. A liquid injection switch according to any one of claims 1-8, wherein the material of the flow restriction valve comprises one of rubber, silicone, and flexible plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220761268.7U CN217409564U (en) | 2022-04-02 | 2022-04-02 | On-off device for liquid injection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220761268.7U CN217409564U (en) | 2022-04-02 | 2022-04-02 | On-off device for liquid injection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217409564U true CN217409564U (en) | 2022-09-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220761268.7U Active CN217409564U (en) | 2022-04-02 | 2022-04-02 | On-off device for liquid injection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217409564U (en) |
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2022
- 2022-04-02 CN CN202220761268.7U patent/CN217409564U/en active Active
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| GR01 | Patent grant | ||
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A on-off device for liquid injection Effective date of registration: 20230106 Granted publication date: 20220913 Pledgee: Ji'nan rural commercial bank Limited by Share Ltd. high tech branch Pledgor: Shandong Tiangong medical products development Co.,Ltd. Registration number: Y2023980030459 |